Acts 20:29
I know, that after my departure grievous wolves will rise up against you, not sparing the flock;
Matthew 7:15
But beware of false prophets, who come to you in sheep's clothing, but inwardly they are rapacious wolves.
John 10:12
The hireling, and the one not being the shepherd, whose own the sheep are not, sees the wolf coming, and leaves the sheep, and flees away, and the wolf seizes and scatters them:
Acts 20:28
Take heed to yourselves, and all the flock, over which the Holy Ghost has placed you shepherds, to shepherdise the church of God, which He bought with His own blood.
Matthew 10:16
Behold, I send you forth like sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves.
Luke 10:3
Go: behold, I send you forth as lambs in the midst of wolves.
2 Peter 2:1
However there were indeed false prophets among the people, as there will also be false teachers among you, whosoever shall bring in destructive heresies, even denying the Lord who bought them, bringing on themselves swift destruction.