Matthew 7:15-17

Twentieth_Century(i) 15 Beware of false Teachers--men who come to you in the guise of sheep, but at heart they are ravenous wolves. 16 By the fruit of their lives you will know them. Do people gather grapes from thorn bushes, or figs from thistles? 17 So, too, every sound tree bears good fruit, while a worthless tree bears bad fruit.