Each Tree Is Known by Its Fruit

Luke 6:43-45 uses paired images of trees and stored treasure to explain the relationship between character and conduct. A good tree does not produce rotten fruit, nor does a rotten tree produce good fruit; each tree is recognized from its own fruit. The imagery draws on common biblical and Jewish moral symbolism in which visible actions disclose underlying character.

Jesus applies the image anthropologically: the good person brings good from the good treasure of the heart, while the evil person brings evil from evil treasure. In biblical usage the kardia, 'heart,' is not merely the seat of emotion but the center of thought, desire, intention, and moral orientation. Speech receives particular emphasis because 'out of the abundance of the heart the mouth speaks.'

The passage follows the warning against hypocritical correction and therefore clarifies how discernment can legitimately operate: not through superficial status claims, but through sustained fruit. Scholars sometimes connect the saying with earlier prophetic fruit imagery or with John the Baptist's demand for 'fruit worthy of repentance.' In Luke's narrative, both connections are plausible, since visible conduct repeatedly functions as evidence of inner response to God.

Luke 6 moves from Sabbath controversy to the formal selection of the Twelve and then to the extended discourse often called the Sermon on the Plain. The opening disputes concern plucking grain and healing on the Sabbath, and both establish Jesus' authority to interpret Sabbath observance in relation to human need and divine purpose. After a night of prayer, Jesus appoints twelve apostles, symbolically evoking the twelve tribes of Israel and giving institutional shape to the expanding mission.

The remainder of the chapter presents a tightly connected body of teaching on blessing and reversal, enemy-love, mercy, judgment, integrity, and obedience. Luke's version parallels much of Matthew's Sermon on the Mount but is shorter and includes distinctive features, especially four blessings balanced by four woes. The discourse repeatedly links inner character with observable conduct: mercy is expressed in treatment of enemies, judgment is restrained by self-examination, trees are identified by fruit, and genuine allegiance to Jesus is demonstrated by doing what he says.