Matthew 12:33-35

33“Make a tree good and its fruit will be good, or make a tree bad and its fruit will be bad, for a tree is recognized by its fruit. 34You brood of vipers, how can you who are evil say anything good? For the mouth speaks what the heart is full of. 35A good man brings good things out of the good stored up in him, and an evil man brings evil things out of the evil stored up in him.