An abbot who is worthy to govern a monastery must always remember what he is called, and fulfill his title through his deeds. For he is believed to hold the place of Christ in the monastery, since he is addressed by a title of His (Christ’s), as the Apostle has said, “You have received the spirit of adoption of sons by which we cry, ‘abba, father” (Rom. 8:15).
Therefore, the abbot should never teach or enact or command anything contrary to the teaching of the Lord; rather let his commands and his teaching, like the leaven of divine justice, suffuse the minds of his disciples.
Rule of Benedict, Chapter 2