Charles Ellicott Commentary Luke 6:45

"The good man out of the good treasure of his heart bringeth forth that which is good; and the evil [man] out of the evil [treasure] bringeth forth that which is evil: for out of the abundance of the heart his mouth speaketh." — Luke 6:45 (ASV)

A good man out of the good treasure.—See Note on Matthew 12:35. There the words are spoken in immediate connection with the judgment which the Pharisees had passed on our Lord as casting out devils by Beelzebub, and follow on a reproduction of the similitude of the tree and its fruit.

The sequence of thought in that passage helps us to trace a like sequence here. Out of the “good treasure of his heart” the good man would bring forth, not harsh or hasty judgment, but kindness, gentleness, compassion; out of the “evil treasure” the man who was evil, the hypocrite who judged others by himself, would bring forth bitterness, and harsh surmises, and uncharitable condemnation.