Matthew 7:15, "Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves."

B SHEEPSTEALER, FOE COME WHICH GO ON IN TO SWAP, PITCH FOUL HERESY is an anagram for "Beware of false prophets, which come to you in sheep's clothing." ( B means "be." Pitch means persuasion.)

HE HELPS GNOSTICS is also an anagram for just "sheep's clothing."

WARNING - VERY WELL AVOID, THEY SNARE is an anagram for "inwardly they are ravening wolves."