Acts 20:17

The elders of the church; pastors and teachers. It has ever been the will of God that Christian churches should be supplied with pastors, who should preach to them the gospel, set them holy examples, superintend their religious concerns, and devote themselves to the promotion of their spiritual good. It has also ever been the will of God, that some of his ministers should be evangelists or missionaries; should visit and gather churches among the destitute in Christian and Pagan lands, and do what they can to preach the gospel to every creature.