What fills the space between the earth and heavens, providing a domain for flying birds (Gen. 1:6–8, 20–23; Deut. 4:17). “Birds of the air,” or “birds in the sky,” is a common biblical expression (e.g., Gen. 1:26, 28, 30; 2:19–20; Pss. 8:8; 79:2; 104:12; Matt. 6:26; 8:20; 13:32). Moses threw soot into the air, which led to the plague of boils on Egypt (Exod. 9:8–12). People threw dust into the air as an expression of mourning (Acts 22:23). Paul uses the images of boxing and speaking “into the air” to express futility (1 Cor. 9:26; 14:9). As the boundary between earth and heaven, the air is where Christ will meet his church at his coming (1 Thess. 4:17). Paul’s contemporaries also distinguished between lower, impure air (vapor) and upper, pure air (ether). Spirits haunted the vapor. Paul therefore claims that Satan is the evil spirit who rules the air below where Jesus is seated at the right hand of the Father (Eph. 1:20–23; 2:2).

A strict division between fortresses and cities was not possible in much of the ancient world, since many major towns were surrounded with protective walls and fortifications. Royal figures, however, did have stand-alone fortresses built within some towns. In 2 Sam. 5:7–9 David captures Zion, a fortress-city, from the Jebusites (see also 1 Chron. 11:5–7). Solomon further enhances the defensive fortifications of Jerusalem (1 Kings 3:1; 2 Chron. 2:1), as do several kings who come after him (e.g., 1 Kings 15:18; 16:18; 18:3; 2 Kings 11:5; 2 Chron. 26:9, 15).

Royal residences, such as those of the pharaohs (Gen. 12:15) and of the kings of Babylon (2 Kings 20:18; Dan. 1:4), Tyre (2 Sam. 24:7), Samaria (2 Kings 15:25), and Persia (Esther 1:5; 5:1; 7:7–8), also served as castles. In Nehemiah’s time, Hananiah is made ruler of the palace fort in Jerusalem (Neh. 2:8; 7:2). Fortified towers also contributed to the defensive equipment of many ancient cities (Gen. 11:1–9; 35:21; Judg. 8:8–9, 17; 9:46, 49; Neh. 3:1; 12:39; Song 4:4; Luke 13:4).

In addition to palaces and fortified cities, numerous smaller castle-type structures are mentioned in the Bible. These forts, usually fairly small, were important for guarding trade routes and major entrance points into a kingdom, and they allowed a ruler to exercise control over a much larger region than would have been possible otherwise. Normally these structures were composed of stone, hardened mud-brick, or a combination of the two, and constituted a tightly packed arrangement of walls, gates, and guard towers. A system of fortresses existed throughout Israel in the time of the unified monarchy, such as those built by David throughout Aram (2 Sam. 8:6) and Edom (2 Sam. 8:14; 1 Chron. 18:13), and those built by Solomon (1 Kings 9:19). Later, Rehoboam expanded this network of forts, which included the strong fortress at Lachish, and further built up the defensive capabilities of many of the towns in Judah (2 Chron. 11:5–11). The later kings Jehoshaphat and Jotham continued this work of fortress building throughout Judah (2 Chron. 17:12; 27:4).

In the four centuries after the conquests of Alexander the Great, new fortresses were built throughout what would become the Roman Empire, including Herod the Great’s palace in Caesarea (Acts 23:35). The Antonia Fortress (see Acts 21:31–37; 22:24; 23:10, 16, 32) overlooked the temple area in Jerusalem and was the headquarters of the Roman army cohort stationed in the city. Herod’s palace on the western hill of Jerusalem may have been the headquarters of Roman governors of Judea, although the Antonia Fortress is also a possible location for this building (see Matt. 27:27; Mark 15:16; John 18:28, 33; 19:9).

The image of a fortress is often invoked in poetic contexts in the Bible to signify God’s unfailing protection (2 Sam. 22:2; Pss. 18:2; 31:2; 46:8; 62:2; 91:2; 144:2; Prov. 14:26; Isa. 25:4; Jer. 16:19). Prophetic denunciation of the fortresses of Israel’s enemies is common in the OT (Isa. 23:11, 13–14; Jer. 49:27; Dan. 11; Amos 1). The destruction of Israel’s own fortresses, especially Jerusalem, is also a common judgment motif in the prophets (Isa. 25:12; Jer. 6:5; 17:27; Hos. 8:14). See also Fort, Fortification.

A commander of one hundred soldiers (a “century”) in a Roman legion, with various tactical and logistical duties, including management of supplies and leadership in battle. Having the best training and most experience in battle, the sixty centurions of each legion served as the backbone of the Roman army. Centurions in the Bible include the centurion who, according to Jesus, had more faith than anyone in Israel (Matt. 8:5–13; Luke 7:2–9); Cornelius the generous God-fearer and supporter of the Jewish people of Caesarea Maritima (Acts 10); the centurion in charge of the soldiers at Jesus’ crucifixion (Matt. 27:54; Mark 15:39, 44–45; Luke 23:47); and the various named and unnamed centurions throughout Acts (see Acts 22–27).

To be a citizen is to possess all the rights, privileges, benefits, and responsibilities of a locale. Three types of citizenship are prominent in the Bible.

Israelite/Jewish. The existence of citizenship in Israel is clearly implied by the concern expressed for just treatment of the aliens who lived among the Israelites (Exod. 22:21–24; 23:9–12). In such a context the political and religious aspects of citizenship were so intertwined as to be inseparable.

Roman. Roman citizenship could be obtained in several ways: (1) being born to citizen parents, (2) manumission from slavery, (3) completion of military service, (4) rendering a valuable service to the Roman Empire, (5) colonization of a city, (6) payment of money. Citizenship entailed privileges such as full access to the legal system and certain protections, among them the right to appeal to Rome and the prohibition against certain punishments. Although only a small number of the early Christians were Roman citizens, Paul used his Roman citizenship at key points in his ministry (Acts 16:37; 22:25–28; 25:10–12).

Heavenly. In the NT, believers have a citizenship that extends beyond the confines of this world. The ministry and death/resurrection of Jesus inaugurated the kingdom of God, which is not of this world (John 19:36). Believers have entered this kingdom and therefore are citizens of the heavenly Jerusalem (Gal. 4:26–28), who eagerly await the return of Jesus their Savior (Phil. 3:20–21). Such citizenship is available to both Jew and Gentile alike (Eph. 2:11–22) and entails a life worthy of the gospel (Phil. 1:27–30).

Central to citizenship is the expectation of loyalty, a reality that can cause tension when one’s heavenly citizenship conflicts with the expectations of human authorities. In such cases, believers should follow the examples of Jesus (John 19:11) and the apostles (Acts 4:13–22), who remained loyal to their heavenly citizenship at great cost.

To be a citizen is to possess all the rights, privileges, benefits, and responsibilities of a locale. Three types of citizenship are prominent in the Bible.

Israelite/Jewish. The existence of citizenship in Israel is clearly implied by the concern expressed for just treatment of the aliens who lived among the Israelites (Exod. 22:21–24; 23:9–12). In such a context the political and religious aspects of citizenship were so intertwined as to be inseparable.

Roman. Roman citizenship could be obtained in several ways: (1) being born to citizen parents, (2) manumission from slavery, (3) completion of military service, (4) rendering a valuable service to the Roman Empire, (5) colonization of a city, (6) payment of money. Citizenship entailed privileges such as full access to the legal system and certain protections, among them the right to appeal to Rome and the prohibition against certain punishments. Although only a small number of the early Christians were Roman citizens, Paul used his Roman citizenship at key points in his ministry (Acts 16:37; 22:25–28; 25:10–12).

Heavenly. In the NT, believers have a citizenship that extends beyond the confines of this world. The ministry and death/resurrection of Jesus inaugurated the kingdom of God, which is not of this world (John 19:36). Believers have entered this kingdom and therefore are citizens of the heavenly Jerusalem (Gal. 4:26–28), who eagerly await the return of Jesus their Savior (Phil. 3:20–21). Such citizenship is available to both Jew and Gentile alike (Eph. 2:11–22) and entails a life worthy of the gospel (Phil. 1:27–30).

Central to citizenship is the expectation of loyalty, a reality that can cause tension when one’s heavenly citizenship conflicts with the expectations of human authorities. In such cases, believers should follow the examples of Jesus (John 19:11) and the apostles (Acts 4:13–22), who remained loyal to their heavenly citizenship at great cost.

A method of punishment whereby the offender is whipped or beaten with rods. Although flogging is not assigned to punish specific crimes in pentateuchal law, Deut. 25:1–3 does refer to judges having guilty parties flogged and limits the number of lashes to forty. Romans used flogging as a precursor to crucifixion, but their method often involved the use of whips with shards of metal or bone incorporated into the strands. Thus, it could do a great deal of damage to the victim and is sometimes called “scourging.” Jesus was subjected to flogging prior to his crucifixion (Matt. 27:26; Mark 15:15; John 19:1), and he warned that his followers would be flogged (Matt. 10:17; Mark 13:9). The lives of the apostles fulfilled these predictions, as flogging became a routine price for their outspoken faith (Acts 5:40; 16:23; 22:24–25; 2 Cor. 11:23; Heb. 11:36).

A method of punishment whereby the offender is whipped or beaten with rods. Although flogging is not assigned to punish specific crimes in pentateuchal law, Deut. 25:1–3 does refer to judges having guilty parties flogged and limits the number of lashes to forty. Romans used flogging as a precursor to crucifixion, but their method often involved the use of whips with shards of metal or bone incorporated into the strands. Thus, it could do a great deal of damage to the victim and is sometimes called “scourging.” Jesus was subjected to flogging prior to his crucifixion (Matt. 27:26; Mark 15:15; John 19:1), and he warned that his followers would be flogged (Matt. 10:17; Mark 13:9). The lives of the apostles fulfilled these predictions, as flogging became a routine price for their outspoken faith (Acts 5:40; 16:23; 22:24–25; 2 Cor. 11:23; Heb. 11:36).

A method of punishment whereby the offender is whipped or beaten with rods. Although flogging is not assigned to punish specific crimes in pentateuchal law, Deut. 25:1–3 does refer to judges having guilty parties flogged and limits the number of lashes to forty. Romans used flogging as a precursor to crucifixion, but their method often involved the use of whips with shards of metal or bone incorporated into the strands. Thus, it could do a great deal of damage to the victim and is sometimes called “scourging.” Jesus was subjected to flogging prior to his crucifixion (Matt. 27:26; Mark 15:15; John 19:1), and he warned that his followers would be flogged (Matt. 10:17; Mark 13:9). The lives of the apostles fulfilled these predictions, as flogging became a routine price for their outspoken faith (Acts 5:40; 16:23; 22:24–25; 2 Cor. 11:23; Heb. 11:36).

To understand the persons and events of the NT, it is important to have at least a cursory understanding of Roman law. Rome held absolute power over its people and vassals from the time of its foundation (c. 750 BC) until the collapse of its empire (c. AD 500); thus, its understanding of law had influence on both philosophical and pragmatic levels. Roman law was remarkable for the detailed yet succinct way cases were treated. Roman law was primarily private law in character; that is, it was law focused on relationships between people. Fathers of families were significant figures in Roman law and custom. They held great power over their wives, children, and slaves. Precedent also played an important role in Roman law, with ritualized legal formulas and style being the key components. Generally speaking, parties determined the outcome between themselves with the help of an arbitrator. Only when such arbitration was unsuccessful, or at the end of arbitration when contractual steps had to be taken, was a jurist/judge brought in. Public trials were more a case of oratory and debate than legal wrangling and procedure.

Roman citizenship. Much of Roman law and activity was dependent on the status of the participants. Roman citizenship itself carried with it a privileged status in terms of law, property, and governance. Citizenship and the rights related to it also varied, depending on the class of the person. The native peoples who lived in territories conquered by Rome, citizens of Roman client states, and Roman allies could be given a limited form of Roman citizenship such as the Latin Right, which permitted land ownership, marriage rights, and certain rights in matters of punishment and detainment. Women’s rights varied over time; however, women were never accorded all the rights of citizens, since they could not vote or hold office. They could, however, own property. Slaves were considered property and had only certain very limited rights as granted by statute. They could essentially be treated in any fashion considered appropriate by their owners. Despite this, a freed slave was granted a form of Roman citizenship. All slaves freed by Roman owners automatically received a limited Roman citizenship. The law of the magistrates as applied to foreigners focused on three areas of interest: trade law, finding a way to apply Roman law to foreign societies, and the procurator’s own sense of fair play and justice.

Paul was a Roman citizen from birth (Acts 22:28), though given his lineage, this citizenship would have been similar to that of the Latin Right. He took advantage of his citizenship at numerous points during his missionary travels by limiting punishment and by an appeal to Caesar (Acts 22:24–29; 25:10–12). There is little information about how people were able to document their citizenship, though undoubtedly some sort of official document would have served such a purpose.

Household and family. As noted above, the father of a household had almost absolute power in that sphere. In relation to this, Paul and Peter’s instructions to the various churches about household relationships stand in stark contrast to the culture within which they were expressed (see Eph. 5:21; Col. 3:18–4:1; 1 Pet. 2:18–3:7). Like Jews, Romans viewed the family as the core element of their society. What occurred in the family was an expression of the core values of the society. For the church to have granted the freedom it did to women and others (Gal. 3:28) would have been difficult for many in the culture to accept. Furthermore, Paul in several places seems to call for restraint in Christian expression of freedom so as not to cause ill repute for the Christian community.

History and hierarchy. Concerning Roman jurisprudence, the system went through many phases of development over the periods of the republic and the empire. During the period of the republic (753–31 BC), the civil law was the primary focus of development. Roman law, like other ancient systems, originally adopted the principle of personality: laws of the state applied only to its citizens. Foreigners had no rights in their courts unless protected by a treaty. Gradually, a more generalized legal code developed in Rome that was applied to everyone, and by the time of the empire, such perspectives of law were well established. This may explain the different treatment received by Paul (and others) in relationship to whether they were known to be citizens.

Procurators and prefects were governors appointed by Rome over Judea after the removal of Archelaus in AD 6 and over all of Palestine at the death of Herod Agrippa. Governors such as Pontius Pilate were the highest power in their province, but they answered to the legate, who could replace them, and ultimately to Caesar, who could overrule them. They had to give their assent to lower local courts before a sentence involving death could be carried out. Because of the lower standing that noncitizens held, the governor often was quick to sacrifice them in order to maintain peace and avoid disturbances. Pilate’s treatment of Jesus seems to fall into such a category.

In general, disputes between members of the same subject state were settled by that state’s own courts according to its own law, whereas disputes between provincials of different states or between provincials and Romans were resolved by the governor’s court applying these principles.

Religion. Since Rome had no centralized cult, the Romans would not execute someone simply on religious grounds. Instead, there needed to be a perception of political revolt, and the charges had to be specific (Matt. 27:12; John 18:29). Because Roman law and trial were more a matter of oratory and reason than legal maneuvering and loopholes, it is not surprising that both Pilate and Felix allowed such leeway in the questioning of Jesus and Paul (John 18; Acts 24).

The word “scourge” refers to both the act of whipping and the whip used in such action. Such a whip usually was laced with sharp rocks or bones capable of decimating the victim’s body.

Rehoboam notes that he would scourge with scorpions, a reference to the stinging of whips (1 Kings 12:11–14). Job refers to a scourge of sudden death (Job 9:22–23), and Isaiah notes God’s punishment the rebellious have sought to avert (Isa. 28:15).

In the NT, Jesus predicts his own scourging (Matt. 20:19; 27:26 [the fulfillment]) and the scourging and death of his followers (23:34). Paul challenges the authority of a tribune to scourge (mastizō) an untried Roman citizen (Acts 22:25).

A high-ranking Roman military officer. Translated “commander” in the NIV, the Greek word chiliarchos designates an officer (Lat. tribunus) in charge of a cohort, which ideally consisted of six hundred soldiers, including over a hundred cavalry (Mark 6:21; John 18:12; Acts 21:31–33, 37; 22:24, 26–29; 23:10, 15, 17–19, 22; 24:22; 25:23; Rev. 6:15; 19:18). A legion consisted of ten cohorts and typically had four to six tribunes. At the arrest of Jesus (John 18:12), it is likely that only a small detachment from a cohort was present.

This book, commonly referred to simply as Acts, is the sequel to the Gospel of Luke and records the exciting history of the first three decades of the early church. The book begins with the ascension of Jesus, followed by his sending of the Holy Spirit, and ends with the gospel message being proclaimed by Paul as a prisoner in the capital city of the Roman Empire. In the pages in between, the reader is introduced to the key people, places, and events of this strategic and crucial time of Christian history. The book of Acts provides insightful and inspiring reading. It forms the backdrop for understanding much of the NT (especially Paul’s letters), and it provides important models for the contemporary church.

Historical Background

In order to understand the book of Acts, one must become familiar with its historical background. This includes understanding the book’s authorship, recipients, and setting. In terms of authorship, the book technically is anonymous; however, there are good reasons for holding to church history’s traditional view that its author is Luke. This tradition dates back to the early second century and is supported by internal evidence. This evidence further reveals that Luke was a physician and close companion of the apostle Paul (in fact, Luke was actually with Paul for some of the events that he records in Acts; see the “we” passages, found in 16:10–17; 20:5–15; 21:8–18; 27:1–28:16). Luke was well educated, well traveled, and familiar with both the Jewish and the Greco-​Roman worlds. He was a Hellenistic God-fearer and a Christian. He was also familiar with the Jewish Scriptures, Greco-Roman rhetoric, and ancient histories, thus making him the perfect candidate to write an accurate history of early Christianity.

The specific recipient of Acts is Theophilus (1:1). Theophilus could be characterized as a relatively new believer of high social status, a person educated in Greco-Roman rhetoric and history, and one who possessed the financial means to promote and publish Luke’s work (both the Gospel of Luke and Acts). It is probable that in some way Theophilus served as a bridge to a wider readership. It seems likely that Theophilus was Luke’s ideal reader (i.e., an influential Greco-Roman of high social standing).

The specific setting of Acts is difficult to determine; however, it seems clear that the book was written during a time of crisis for the church. This crisis involved persecution and slander of Christians by both Jews and Gentiles. Both groups were trying to persuade public opinion against Christianity, including the opinion of Greco-Roman authorities. The persecution and slander were taking their toll on the church, and many Christians were demoralized and struggling to remain faithful as witnesses of Jesus. Christianity needed someone to write a response to this crisis. This response had to do three things: (1) accurately relate the history of the church to influential Greco-Romans of high social status; (2) show that Christianity was an ancient religion (ancient religions were considered to be legitimate by Roman authorities) and an asset to the Roman Empire, not a threat; (3) legitimize Christianity over against Judaism. The author of this reponse had to be someone who was respected both inside and outside of the Christian faith community, who knew the church’s history well, and who was educated in Greco-Roman rhetoric. What better authorial candidate than Luke? Finally, the church also needed a person of high social status and financial means to help publish and promote the work; thus, Theophilus was chosen.

Purpose

The book of Acts was written for a variety of purposes. These include apologetics, legitimization, discipleship, and witness to salvation. The apologetic purpose of Acts focuses on how Christianity could be recognized as an ancient, honorable, and officially protected religion in the Roman Empire. Although Judaism had the status of religio licita (legal religion) with Roman authorities for most of the first century, Christianity encountered serious problems in this respect. Acts itself reveals a substantial amount of such evidence in this regard. For example, 16:20–21 shows that at Philippi, Paul and Silas were charged with disturbing the peace by advocating unlawful customs. In Thessalonica, the missionaries were accused of defying Caesar by promoting another king named “Jesus” (17:7). At Corinth, the charge was that of persuading the people toward unlawful worship (18:13). Later in Acts, Paul was charged by the Jewish priestly leaders with being part of an unacceptable sect that was stirring up riots in Jewish communities (24:5–9). In 28:22, when Paul addressed the Roman Jews, they responded by saying that “people everywhere are talking against this sect [Christianity].” Such accusations, accompanied by the fact that Christianity’s founder had been crucified by Roman authorities, made it difficult for the Christians to gain credibility. Christianity’s precarious position with Rome was further exacerbated by a strong Jewish campaign to separate from Christians and to label them as sectarian. This strategy certainly intended for Christianity to be viewed by Rome as religio illicita (illegal or forbidden religion). Thus, Luke writes Acts to defend Christianity by showing that it is not a replacement of Judaism, but rather its legitimate continuation. Therefore, it should be accepted by the Roman authorities as a legal religion just as Judaism was accepted.

Luke’s apologetic message also appears to be directed inwardly, to a struggling church. This inward focus leads to Luke’s next main purpose: legitimization of the Christian faith for its adherents. As part of his defense, Luke intends to equip the church in the midst of an identity crisis due to the constant threats of illegitimacy. This explains Luke’s strategy of retelling the story of the church’s origins so that followers of Christ would understand their true position from God’s perspective. Thus, Luke verifies four things: (1) the Jewish Scriptures prophesied a coming messiah, and Jesus matched these prophecies; (2) the resurrection was foretold in Scripture and verified by eyewitnesses; (3) it was God’s plan all along for Gentiles to be included in God’s redemptive work; (4) Jews who rejected Jesus were acting in the same way their ancestors did; therefore, believers should not be surprised by their negative reaction to Jesus. Luke uses stories such as the one in Acts 2:41–47 to verify that salvation was genuinely being accomplished in the church and that Christians were experiencing the fulfillment of God’s ancient promises to Israel. Luke’s writing is intended to encourage his contemporary church members to remain faithful in their service and witness for the Lord. He reminds them that they are the true (legitimate) “people of God” and that God’s Spirit will help them prevail and will give them abundant life even in the midst of hardship and persecution.

Another key purpose of the book of Acts is to foster discipleship. The prologues of both Luke’s Gospel and Acts verify that Luke is writing to provide instruction and teaching for Theophilus (see Luke 1:1–4; Acts 1:1–2). Part of this instruction reveals that the ascension of Jesus was not the end of his relationship with the world, but rather a new beginning. Jesus’ departure did not mean abandonment; in fact, it meant just the opposite. Jesus verifies his continuing presence and work in the world after his departure just as he had lived and worked before. In other words, the same Spirit who directed the ministry of Jesus is now going to direct the ministry of Jesus’ followers. The rest of the book of Acts provides instruction (with many personal examples) on how Christ can fulfill the ministry of believers through the power and direction of the Holy Spirit. Luke’s discipleship teaching includes helping believers learn how to experience and follow God’s Spirit (chap. 2), to boldly witness for Christ in the midst of persecution (chaps. 3–4, 8, 14, 16–17, 19–28), to sacrificially share resources with other Christians in need (chaps. 2, 4, 11), to resolve disputes within the church (chaps. 6, 15), and to take the gospel message of salvation to all people (chaps. 2, 11, 13–28).

The book of Acts places great emphasis on the message of salvation and the responsibility given to believers to share this salvific message with all people. This salvation-witness concept is clearly one of Luke’s key purposes for the book of Acts. The Pentecost event of Acts 2 initiates the theme of salvation for all people and thus sets the agenda for the rest of the book. In this passage, various Jews from many nations hear the good news in their own tongue, which suggests that this news is for peoples of all tongues and nations yet for Jews first. The rest of Acts continues this theme of the universal scope of salvation. Luke makes it clear that this salvation crosses all geographical, ethnic, and social boundaries. In Acts, Luke is bridging the gap between Jesus’ earthly ministry and a later generation of Christ followers who are to take the gospel to a much wider geographical area with even greater ethnic diversity. The message of salvation should be joined with Luke’s emphasis on witness. The centrality of the theme of witness in Acts is verified by Jesus’ words right before the ascension: “And you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth” (1:8). The book of Acts tells the story of how the early church received and obeyed the command of Jesus to bear witness of him to the ends of the earth.

Literary Features

These key purposes of Acts are expounded through some distinctive literary features found in the book. One such literary feature is that the book of Acts was written in a literary genre called “apologetic historiography.” This genre can be defined as the story of a subgroup of people told by a member of the group who explains the group’s traditions and history while using Greco-Roman literary features. A good example of this literary genre is Josephus’s Jewish Antiquities. Josephus tells the story of the Jews to Greco-Roman readers in hopes that they will better understand Jewish history and traditions and will accept the Jews in the larger Greco-Roman world. This appears to be exactly what Luke is doing in the book of Acts for Christians. However, Luke is not giving a defense of a particular ethnic group; rather, he is defending a multicultural people who transcend ethnic and geographical boundaries. In fact, this is a key part of Luke’s message. Throughout Acts, Luke is trying to explain why his religion is one that crosses ethnic boundaries and is a universal religion inclusive of all ethnicities. As Luke tells the story of Christianity, he is careful to utilize Hellenistic literary features in order to connect with his primary audience. Evidence of these Hellenistic literary features in the book of Acts includes a narrative style illustrating the history through the personal experiences of key characters (Acts tells the history of the early church through characters such as Peter and Paul), the frequent use of speeches, personal observation of at least part of the narrative while maintaining anonymity of authorship (the “we” passages of Acts), and the frequent use of summaries to guide the narrative (Acts contains three major summaries [2:42–47; 4:32–37; 5:12–16] and a number of minor summaries [6:7; 9:31; 12:24; 16:5; 19:20; 28:31]).

Outline and Survey

Acts can be outlined according to Jesus’ final words, recorded in 1:8: “You will receive power when the Holy Spirit comes on you; and you will be my witnesses in Jerusalem, and in all Judea and Samaria, and to the ends of the earth.”

I. Witnesses in Jerusalem (1:1–8:3) II. Witnesses in Judea and Samaria (8:4–12:25) III. Witnesses to the Ends of the Earth (13:1–28:31)

I. Witnesses in Jerusalem (Acts 1:1–8:3). Immediately following his ascension, Jesus tells his followers to return to Jerusalem and wait for the coming of the Holy Spirit. They promptly obey, and after ten days of waiting, the disciples are dramatically filled with the Holy Spirit and begin to share the gospel with those around them. This event occurs at the Jewish Pentecost festival, which was attended by Jews and Jewish proselytes from throughout the Roman Empire. After the Spirit comes at Pentecost, Peter boldly preaches to the crowds, and over three thousand people respond with saving faith (2:41).

Luke next provides an exciting summary of the Spirit-led life within the early church. This life is characterized by the early believers’ participation together in the sharing of worship activities, material possessions, and spiritual blessings (2:42–47). This summary is followed by several dramatic healing miracles accomplished through Peter and the subsequent arrest of Christian leaders by Jewish religious authorities. Instead of squelching the Christian movement, however, these arrests only enhance the spiritual revival and its accompanying miracles. This revival is characterized by extreme generosity and unity within the early church (4:32–37).

The revival joy, however, is marred by the deceitful actions of Ananias and Sapphira, who lie to the church and to the Holy Spirit and are judged by God with immediate death (5:1–11). This story proves that God will go to extreme lengths to protect the unity of his church. Following more persecution and miracles, the disciples choose seven men to oversee distribution of food to Hellenistic widows who have been neglected in daily food distributions (6:1–7). One of these leaders, Stephen, is arrested and brought before the Sanhedrin. Stephen testifies boldly before the Jewish leaders and is promptly executed by stoning (chap. 7). This execution is endorsed by Saul, a zealous Pharisee who begins to lead fierce persecution against the church in Jerusalem (8:1–3).

II. Witnesses in Judea and Samaria (Acts 8:4–12:25). Saul’s persecution forces many of the early church believers to leave Jerusalem. These believers scatter throughout the surrounding areas of Judea and Samaria. As they scatter, however, they continue to preach the gospel (8:4). Philip preaches in Samaria and performs many miraculous signs, producing a spiritual revival in the region. Hearing about this, the apostles send Peter and John to Samaria to minister to the Samaritans (8:18–25), thus confirming the cross-cultural nature of the gospel (Samaritans traditionally were hated by the Jews). Next Luke tells of Philip’s evangelizing of an Ethiopian eunuch (8:26–40).

Following the Ethiopian’s belief in Jesus, the narrative tells of Saul’s dramatic conversion while traveling to Damascus to persecute Christians there (9:1–19). Saul’s dramatic turnaround is met with suspicion by the other disciples, but eventually he is accepted by the believers with the help of Barnabas (9:27–30). Next Peter travels to the Judean countryside and heals the paralytic Aeneas and raises Dorcas from the dead (9:32–42). These miracles produce an exciting spiritual revival in the region. Following this, God gives Peter a vision to go to the coastal city of Caesarea in order to minister to Cornelius, a Roman army officer. Cornelius is a God-fearer, and through Peter’s witness he responds to the gospel message and receives the Holy Spirit (chap. 10). Peter explains his actions with Cornelius to his concerned Jewish companions and verifies that God has indeed included the Gentiles in his plan of salvation (11:1–18).

This verification is followed by the report of what is happening in the church at Antioch, where Jews begin to share the gospel with larger groups of Gentiles (11:19–21). This cross-cultural evangelism produces a spiritual revival in Antioch, causing the Jerusalem church to send Barnabas to the large Syrian city to investigate (11:22–30). Barnabas confirms that God is indeed at work in Antioch and invites Saul to come and help him disciple the new Gentile believers (11:25–26). Next Luke reports more persecution breaking out against Christians in Jerusalem, resulting in the arrest of James and Peter by King Herod. James is executed, but Peter miraculously escapes from prison with the help of an angel (12:1–19), and the church continues to increase, spreading throughout the Roman Empire.

III. Witnesses to the ends of the earth (Acts 13:1–28:31). Starting with chapter 13, the narrative shifts its focus from the ministry of Peter to that of Paul (formerly Saul). The church at Antioch begins to take center stage over the church at Jerusalem. This church commissions Paul and Barnabas and sends them off on their first missionary journey, accompanied by Bar­na­bas’s cousin John Mark. The missionaries first sail to Cyprus, where they preach in synagogues and encounter a Jewish sorcerer, Bar-Jesus. Next they sail to Pamphylia, thus crossing into Asia Minor, and preach the gospel in Pisidian Antioch, Iconium, Lystra, and Derbe (this area was known as part of the region of Galatia). In these cities, God provides numerous miracles, and the missionaries experience a great response to the gospel as well as much persecution because of the gospel. On one occasion, Paul is actually stoned and left for dead (14:19–20).

Unfazed, Paul and his team boldly continue their mission. Eventually, they retrace their steps, strengthen the churches that they have started, and sail back to Syrian Antioch, where they give an exciting report to the church (14:26–28). Following this report, Luke tells of an important meeting of church leaders in Jerusalem. The subject of the meeting involves whether or not the new Gentile Christians should be required to follow the Jewish laws and customs. After debating the issue, the leaders side with Paul, determining that the Gentiles should not be burdened with Jewish laws and traditions, but simply must live moral lives and not eat food that has been sacrificed to idols (chap. 15).

Following this meeting, Paul and Barnabas decide to make a second missionary journey. Unfortunately, the two missionaries get into a dispute over whether to take John Mark with them again. The argument is such that the missionaries decide to separate, and Paul chooses a new partner, Silas. They travel by land back to Galatia. Barnabas takes John Mark and sails to Cyprus. Paul and Silas return to Derbe and Lystra and then make their way to Macedonia and Greece. They spend significant time in Philippi, Thessalonica, and Corinth before returning to Caesarea and Antioch (chaps. 16–18). Following his return, Paul makes a third missionary journey, revisiting churches in Galatia and Phrygia and staying in Ephesus for three years before visiting Macedonia and Greece for a second time.

Paul concludes his third missionary journey with a trip to Jerusalem, where he is falsely accused of bringing a Gentile into the temple. This accusation creates a riot, and Paul is rescued by Roman soldiers, who arrest him and transfer him to a prison in Caesarea, where he spends two years awaiting trial under the rule of Felix and Festus (23:34–25:22). Paul eventually exercises his right as a Roman citizen to have his case heard by the emperor. He is sent to Rome by boat and is shipwrecked on the island of Malta. Eventually he makes his way to the capital city, where he is placed under house arrest. While in Rome, Paul maintains a rented house and is free to receive visitors and write letters. In fact, it is thought that Paul penned his “prison letters” during this time of house arrest (Ephesians, Philippians, Colossians, Philemon). The narrative of Acts ends with Paul ministering boldly in Rome while awaiting his trial.

Acts and the Contemporary Church

The book of Acts provides a model for today’s church on numerous topics. These include understanding the role of the Holy Spirit, practicing community life within the church, dealing with hardship and persecution, overcoming social injustices, and carrying out missions.

Acts reveals that the key issue for Christians is learning to experience and follow God’s Holy Spirit, who enables believers to be bold in their witness for Christ, generous in their physical and spiritual support of each other, and effective in their ministries. Acts consistently reveals that one’s joy, power, and purpose come from the Holy Spirit. According to Acts, learning to follow and depend upon God’s Holy Spirit is the key to having a healthy church.

Acts also shows that the Holy Spirit produces a unique community life characterized by worship, generosity, blessing, and unity. Luke calls this Spirit-led common life koinōnia, which is explained and illustrated in the first five chapters of Acts (see esp. 2:42–47). It should be the desire and goal of every church to re-create this koinōnia community first experienced by the primitive church in Acts.

In addition to its koinōnia, the book of Acts serves as a model for the church in overcoming persecution and hardship. The narrative of Acts consistently reveals the sovereign power of God in overcoming opposition. The early church found great joy and growth in the midst of hardship and persecution, and today’s church can do the same.

Another important example for the church provided by Acts is in the area of social justice. Luke’s primitive church consistently removed ethnic prejudices, eliminated social hierarchy and status within the church, and elevated the role of women. Acts provides inspiration and guidance for today’s church in facing these same social issues.

In addition to overcoming social injustices, the church in Acts provides an excellent example of mission ministry. These believers consistently revealed God’s heart for the nations and made it a priority to share the gospel with all people everywhere. Acts’ emphasis on the universal nature of the gospel, the responsibility of individual Christians to witness for Christ, and the importance of planting new churches and discipling new believers sets a pattern for today’s church in the area of missions.

These examples should serve to inspire and guide the contemporary church as it seeks to follow and experience the Holy Spirit, who is so powerfully revealed in the book of Acts.

The concept of authority in Scripture includes two distinct elements. First, a person has authority in various settings if he or she has the right to tell others what to do and decide how matters should be arranged. Second, a person has authority if he or she has not only the right to rule, as in the first case, but also the power to control, so that what this person decrees actually happens. When the angel of the Lord tells Hagar, “Go back to your mistress and submit to her,” he employs the first aspect of authority (Gen. 16:9). Hagar must do what Sarah tells her to do. The same sense of authority operates in Deut. 1:15, where Moses recalls, “So I took the leading men of your tribes, wise and respected men, and appointed them to have authority over you” (cf. Exod. 18:13–27). On the other hand, when Yahweh says of his word, “It will not return to me empty, but will accomplish what I desire and achieve the purpose for which I sent it,” the second sense of authority also plays a role (Isa. 55:11; cf. Heb. 4:12). Likewise regarding the one who “overcomes” in the book of Revelation: the Son gives the church authority, and its people rule the nations “with an iron scepter” (2:26–27). Both ideas—forensic right and power to effect—arise in that context.

The authority of Christ is a prominent theme of the Gospels, being evidence of his deity and messianic status. In Matthew’s Gospel, for instance, the Sermon on the Mount concludes with the crowd’s wonder that Jesus teaches “as one who had authority,” unlike the teachers of the law (7:28–29). Jesus then displays his authority over diseases (8:1–10), natural forces (8:26–27), and demonic entities (8:28–32), culminating in his authority to forgive sins (9:6) and resuscitate the dead (9:18–26). Mark and Luke also include parallel passages that emphasize the authority of Christ over similar domains. John’s Gospel highlights the authority of Jesus to judge (5:27), to lay down his life and take it up again (10:18), and to grant eternal life to those who abide in him (17:2). The authority of Christ over all events, even the worst of them, is the grand theme of the book of Revelation. Jesus has the right and power to rule for the sake of his church, overcoming all powers that usurp authority in opposition to him (Rev. 4–5; 13; 20). Finally, even the Great Commission proclaims the supreme authority of Christ (Matt. 28:18; cf. Eph. 1:21; Col. 2:10). With God, we expect authority as right and as power always to coincide in the end.

On this same trajectory, the church must submit to authority, first to God and then to human rulers, in the latter case when it can be done in good conscience. Paul’s references to Jesus as “Lord” throughout the Corinthian letters highlight his authority over those whom he has “bought at a price” (1 Cor. 6:9–20). For his own part, Paul can implicitly “pull rank” on the Corinthians, citing his own God-given authority over them (2 Cor. 10:8; 13:10; cf. 1 Tim. 4:2). No one should “lord it over” others (Luke 22:25–26), but even when they do, the servant must respect the master’s authority (1 Pet. 2:17–19). Wives must submit to the servant leadership of their husbands (Eph. 5:22), children must obey their parents (Eph. 6:1–3), slaves must yield to their masters (Eph. 6:5–8), and laypersons must obey the church’s elders (Heb. 13:17).

Respect for authority also extends to secular governments, whatever the character of their leaders. Even though Saul had intended to kill David (1 Sam. 20:33), David is outraged that anyone would kill Saul (2 Sam. 1:14). The apostle Paul has many reasons to distrust secular governments and defy their authority; yet when he is subjected to official abuse, he respects Rome’s laws (Acts 16:16–40; 21–28). In Rom. 13:1–6 Paul commands the church to be subject to governing authorities, assuming that God has established them, so that “whoever rebels against the authority is rebelling against what God has instituted” (v. 2). In 1 Tim. 2:1–3 the church is called to prayer for secular rulers. These passages do not require obedience to human authority even when it conflicts with the will of God (Acts 5:29), but they do prevent the church from hindering the gospel with outbreaks of revolutionary enthusiasm.

The word “scourge” refers to both the act of whipping and the whip used in such action. Such a whip usually was laced with sharp rocks or bones capable of decimating the victim’s body.

Rehoboam notes that he would scourge with scorpions, a reference to the stinging of whips (1 Kings 12:11–14). Job refers to a scourge of sudden death (Job 9:22–23), and Isaiah notes God’s punishment the rebellious have sought to avert (Isa. 28:15).

In the NT, Jesus predicts his own scourging (Matt. 20:19; 27:26 [the fulfillment]) and the scourging and death of his followers (23:34). Paul challenges the authority of a tribune to scourge (mastizō) an untried Roman citizen (Acts 22:25).

The word “scourge” refers to both the act of whipping and the whip used in such action. Such a whip usually was laced with sharp rocks or bones capable of decimating the victim’s body.

Rehoboam notes that he would scourge with scorpions, a reference to the stinging of whips (1 Kings 12:11–14). Job refers to a scourge of sudden death (Job 9:22–23), and Isaiah notes God’s punishment the rebellious have sought to avert (Isa. 28:15).

In the NT, Jesus predicts his own scourging (Matt. 20:19; 27:26 [the fulfillment]) and the scourging and death of his followers (23:34). Paul challenges the authority of a tribune to scourge (mastizō) an untried Roman citizen (Acts 22:25).