Matt 7:15-23 (NIV)
"Watch out for false prophets. They come to
you in sheep's clothing, but inwardly they are ferocious wolves. 16 By their fruit you will recognize them. Do people pick grapes from thornbushes, or figs from thistles? 17 Likewise every good tree bears good fruit, but a bad tree bears bad fruitÉ.21 "Not
everyone who says to me, `Lord, Lord,' will
enter the kingdom of heaven, but only he who does
the will of my Father who is in heaven. 22
Many will say to me on that day, `Lord, Lord, did
we not prophesy in your name, and in your name
drive out demons and perform many miracles?' 23 Then I will tell them plainly, `I never knew you.
Away from me, you evildoers!'