Matthew 12:33-35

“Either make the tree good and its fruit good, or make the tree bad and its fruit bad; for the tree is recognized and judged by its fruit. You brood of vipers, how can you speak good things when you are evil? For the mouth speaks out of that which fills the heart. The good man, from his [inner]good treasure, brings out good things; and the evil man, from his [inner]evil treasure, brings out evil things.