 When the followers of Jesus planted new Christian communities, they also went back and made sure to appoint elders for these communities. Then later in Acts chapter 20, we hear Paul call a group of those elders together, and he says to them that God the Holy Spirit has made them overseers to be shepherds or pastors for God's flock, his church, which he bought with his own blood. So we've got a lot of names for this position. They're called elder, pastor, overseer, minister.