A Tree and Its Fruit 43 No good tree bears bad fruit, nor does a bad tree bear good fruit. 44Each tree is recognized by its own fruit. People do not pick figs from thornbushes, or grapes from briers. 45The good man brings good things out of the good stored up in his heart, and the evil man brings evil things out of the evil stored up in his heart. For out of the overflow of his heart his mouth speaks. Behavior modification vs heart transformation