Thematic Bible: Tree and its fruit

There is no such thing as a good tree bearing worthless fruit, or, on the other hand, a worthless tree bearing good fruit. For every tree is known by its own fruit. People do not gather figs off thorn bushes, nor pick a bunch of grapes off a bramble. A good man, from the good stores of his heart, brings out what is good; while a bad man, from his bad stores, brings out what is bad. For what fills a man's heart will rise to his lips.