Beware of the false prophets, who come to you in sheepâs clothing, but inwardly are ravenous wolves. You will know them by their fruits. Grapes are not gathered from thorn bushes, nor figs from thistles, are they? (Matthew 7:15â16)After warning about false prophets, Jesus tells us what to watch for in identifying them. Because they are so extremely deceptive and dangerous ravenous spiritual and moral wolves in sheep's clothing-the Lord would hardly have left us without means of determining who they are.Jesus assures us that we will know them by their fruits. A fruit tree may be beautiful, decorative, and offer pleasant shade in the summer. But its primary purpose is to bear fruit, and it is therefore judged by what it produces and not by how it looks. . . .