Thematic Bible: Tree and its fruit

For there is no good tree which produceth fruit of a bad quality; neither doth a tree of a bad sort produce good fruit. Every tree is known by its own peculiar fruit. For men do not gather figs from off thorns, nor do they gather from the bramble a bunch of grapes. A good man, out of the good treasure of his heart, produceth what is good; and a wicked man, from the evil treasure in his heart, produceth that which is evil: for out of the abundance of the heart the mouth speaketh.