Thematic Bible: Tree and its fruit

For there is no good tree which bringeth forth corrupt fruit, neither a corrupt tree, which bringeth forth good fruit. For every tree is known by its own fruit; for they do not gather figs from thorns, nor from a bramble do they gather grapes. A good man, out of the good treasure of his heart, bringeth forth that which is good; and an evil man, out of the evil treasure of his heart, bringeth forth that which is evil; for of the abundance of the heart the mouth speaketh.