Matthew 7:15-18

“Be careful of false prophets. They come to you and look gentle like sheep. But they are really dangerous like wolves. You will know these people because of what they do. Good things don’t come from people who are bad, just as grapes don’t come from thornbushes, and figs don’t come from thorny weeds. In the same way, every good tree produces good fruit, and bad trees produce bad fruit. A good tree cannot produce bad fruit, and a bad tree cannot produce good fruit.