Thematic Bible: Tree and its fruit

"For there is not good tree which bears worthless fruit, nor again any worthless tree which bears good fruit; for each tree is known by its own fruit. "You do not gather figs from thorns, and grapes are not plucked from a bramble-bush. "The good man out of the good treasure-house of his heart brings forth good; and the evil man out of the evil treasure-house of his heart brings forth evil; for the mouth speaks out of the abundance of the heart.