Acts 20:28
'Keep watch over yourselves and all the flock of which the Holy Spirit has made you overseers (episkopos, bishops). Be shepherds of the church of God, which he bought with his own blood' — The governance language (episkopos, shepherd, poimainō) establishes pastoral responsibility. The flock's purchase through Christ's blood (aima Christou) sacralizes the church and binds leadership to sacrificial stewardship.