Beware of false prophets, who come to you in sheep's clothing, but inwardly they are ravening wolves.
All Commentaries on Matthew 7:15 Go To Matthew 7
John Chrysostom
AD 407
Notice that along with the dogs and pigs there is another form of ambush and plotting that causes far more trouble than that of dogs or pigs. For the dogs and pigs do not hide their nature. They are obvious. But the movements of wolves are hidden in shadows. Hence he commanded that one should not only avoid the dogs and pigs but also that one should continuously and carefully look out for wolves, because one cannot see them the moment they attack. For this reason he says, “Watch out!”—to make his hearers more careful to distinguish deception from truth. The Gospel of Matthew, Homily
