Acts 20:29-31

New Revised Standard Version, Anglicised

²⁹ I know that after I have gone, savage wolves will come in among you, not sparing the flock. ³⁰ Some even from your own group will come distorting the truth in order to entice the disciples to follow them. ³¹ Therefore be alert, remembering that for three years I did not cease night or day to warn everyone with tears.