Matthew 7:15-20
Jesus tells a story about a tree and its fruit
15 ‘Some people say that they are prophets from God. But their words are false. They seem to be like sheep that are not dangerous. But they are really like hungry wild dogs. What they teach will hurt you.
16 You will know these people by the way that they live. The things that they do are like their fruit. Grapes do not grow on thorn bushes. Figs do not grow on weeds. 17 Good fruit grows on a tree that is good. Bad fruit grows on a tree that is not good. 18 A good tree cannot make bad fruit. A bad tree cannot make good fruit. 19 A farmer will cut down any tree that does not make good fruit. He will burn it on a fire. 20 In the same way, look at the way people live. Then you will know what they are really like.
7:16The prophets are like fruit trees. The things that they do are like the fruit on the trees. If they do good things, then the fruit is good. And the people will know that they are real prophets. If they do wrong things, then that is like bad fruit. And the people will know that they are not real prophets.