Matthew 7:15
Beware of false Teachers--men who come to you in the guise of sheep, but at heart they are ravenous wolves.
Matthew 10:16
Remember, I am sending you out as my Messengers like sheep among wolves. So be as wise as serpents, and as blameless as doves.
Acts 8:3
But Saul began to devastate the Church; he entered house after house, dragged out men and women alike, and threw them into prison.
Acts 9:1
Meanwhile Saul, still breathing murderous threats against the disciples of the Lord, went to the High Priest,
Acts 20:29
I know that, after my departure, merciless wolves will get in among you, who will not spare the flock;
Philippians 3:5
I was circumcised when eight days old; I am an Israelite by race, and of the tribe of Benjamin; I am a Hebrew, and the child of Hebrews. As to the Law, I was a Pharisee;