Context: Jesus, in the Sermon on the Mount, teaches that those faithful to the Almighty will be rewarded in Heaven and declares Himself to be the fulfillment of the old law rather than the destruction of it. He explains the right manner of living and offers the Golden Rule as the law. Admonishing the people to live the disciplined life which leads to eternal life, he warns them of those who are not of God and who work through deception in the church. They can, however be recognized by their evil deeds:
Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves.
Ye shall know them by their fruits. Do men gather grapes of thorns, or figs of thistles?