John Wesley on Acts 20:28

Take heed therefore - I now devolve my care upon you; first to yourselves; then to the flock over which the Holy Ghost hath made you overseers - For no man, or number of men upon earth, can constitute an overseer, bishop, or any other Christian minister. To do this is the peculiar work of the Holy Ghost: to feed the Church of God - That is, the believing, loving, holy children of God; which he hath purchased - How precious is it then in his sight! with his own blood - For it is the blood of the only begotten Son of God, 1John 1:7.