Acts 20:29-31

ASV(i) 29 I know that after my departing grievous wolves shall enter in among you, not sparing the flock; 30 and from among your own selves shall men arise, speaking perverse things, to draw away the disciples after them. 31 Wherefore watch ye, remembering that by the space of three years I ceased not to admonish every one night and day with tears.