Now our Lord Jesus Christ himself, and God our Father, who loved us and gave us eternal comfort and good hope through grace,
Beware of false prophets, who come to you in sheep's clothing, but inwardly are ravening wolves.  By their fruits ye shall know them.  Do men gather grapes of thorns, or figs of thistles? Even so every good tree bringeth forth good fruit; but the corrupt tree bringeth forth evil fruit.  A good tree cannot bring forth evil fruit, neither can a corrupt tree bring forth good fruit.  Every tree that bringeth not forth good fruit is hewn down, and cast into the fire.  Therefore, by their fruits ye shall know them.  Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father who is in heaven.  Many will say to me in that day, Lord, Lord, did we not prophesy by thy name, and by thy name cast out demons, and by thy name do many mighty works?  And then will I profess unto them, I never knew you: depart from me, ye that work iniquity  (Matthew 7:15-23).