For a good tree brings not forth corrupt fruit; neither does a corrupt tree bring forth good fruit.
All Commentaries on Luke 6:43 Go To Luke 6
Cyril of Alexandria
AD 444
Each man's life also will be a criterion of his character. For not by extrinsic ornaments and pretended humility is the beauty of true happiness discovered, but by those things which a man does; of which he gives an illustration, adding, For of thorns men do not gather figs.
But having shown that the good and the bad man may be discerned by their works as a tree by its fruits, he now sets forth the same thing by another figure, saying, A good man out of the good treasure of his heart brings forth that which is good, and the evil man out of the evil treasure brings forth that which is evil.
