Luke’s description of Paul’s return to Antioch (18:18–22) provides the itinerary of Paul to Antioch through Ephesus, Caesarea, and Jerusalem. This brief account serves two additional functions. First, it emphasizes Paul’s connection with the Jewish believers and the Jerusalem church. The “vow” (18:18) that Paul takes most likely refers to the Nazirite vow that Jews took when dedicating themselves to God for a period of time (Num. 6:1–21). Paul’s cutting off his hair is probably an act prior to the observance of the vow that ends when he has his hair “shaved” (Acts 21:24; cf. Num. 6:18). Luke does not provide the specific occasion for this vow, but this brief note is sufficient in emphasizing Paul’s adherence to Jewish traditions. The note that “he went up …