15Beware of the false prophets who come to you in sheep's clothing, but inwardly they are ravenous wolves.16You will recognize them by their fruits. Do people gather grapes from thornbushes or figs from thistles?17In this way every good tree makes good fruit, but the rotten tree makes evil fruit.18A good tree cannot produce bad fruit, nor can a rotten tree produce good fruit.19Every tree that does not produce good fruit is cut down and thrown into the fire.20Therefore, you will indeed recognize them by their fruits.21Not everyone saying to me, "Lord, Lord," will enter the kingdom of heaven, but the one doing the will of my Father in heaven.22Many will say to me on that day, "Lord, Lord, did we not prophesy in your name, cast out demons in your name, and do many mighty works in your name?"23And then I will tell them, "I never knew you; depart from me, you workers of lawlessness."