I know that after I am gone savage wolves will come in among you, and they will not spare the flock.
In context
27for I did not shrink from announcing to you the whole purpose of God. 28Keep watch over yourselves and over the whole flock in which the Holy Spirit has made you overseers, to shepherd the church of God, which he won for himself with the blood of his own. 29I know that after I am gone savage wolves will come in among you, and they will not spare the flock. 30From your own number men will rise up and twist the truth to drag the disciples away after them. 31So stay awake, and remember that for three years, night and day, I never stopped warning each one of you, with tears.