Acts 20:28-32

28Take heed unto yourselves, and to all the flock, in the which the Holy Ghost hath made you bishops, to feed the church of God, which he purchased with his own blood.

29I know that after my departing grievous wolves shall enter in among you, not sparing the flock;

30and from among your own selves shall men arise, speaking perverse things, to draw away the disciples after them.

31Wherefore watch ye, remembering that by the space of three years I ceased not to admonish every one night and day with tears.

32And now I commend you to God, and to the word of his grace, which is able to build you up, and to give you the inheritance among all them that are sanctified.