In his Large Catechism Martin Luther describes the church: "There is on earth a little holy flock or community of pure saints under one head, Christ. It is called together by the Holy Spirit in one faith. I was brought to it by the Holy Spirit and incorporated into it through the fact that I have heard and still hear God’s Word. In this Christian church we have the forgiveness of sins, which is granted through the holy sacraments and…the Gospel"