'Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.' Jesus shifts from blasphemy teaching to principle: tree and fruit must match. You can't have good tree producing bad fruit or vice versa. The verb 'make' (ποιήσατε/poiēsate) means 'declare, consider, judge'—Jesus commands consistent judgment. If fruit is good (miracles healing, liberating, blessing), the tree must be good. If fruit is bad, tree is bad. The Pharisees' error: acknowledging good fruit (miracles) while claiming bad tree (demonic power). This is logically impossible. Reformed theology applies this broadly: genuine faith produces genuine fruit (James 2:17-20); false faith produces false fruit. Profession must match practice; words must align with works. The verse warns against inconsistency: you cannot praise Jesus's words while rejecting His authority, claim faith while living in unrepentant sin, confess Christ while denying Him in practice. Tree determines fruit; character determines conduct; inner reality produces outward expression.
Historical Context
Tree/fruit metaphor appears throughout Scripture: Psalm 1:3 (righteous like fruitful tree), Jeremiah 17:8 (blessed like tree by water), Matthew 7:16-20 (know them by fruits), John 15:1-8 (vine and branches), Galatians 5:22-23 (fruit of Spirit). Jesus used this familiar imagery to expose Pharisees' illogic: they witnessed good fruit yet claimed evil tree. Jewish agricultural experience made the point obvious—healthy trees produce healthy fruit; diseased trees produce diseased fruit. You identify tree type by examining fruit. Applied to Jesus: His fruit (miracles healing, delivering, blessing) demonstrated His tree (divine authority, Spirit's power). Pharisees' refusal to draw obvious conclusion revealed bad faith. Early church used this principle evaluating teachers and prophets (Matthew 7:15-20, 1 John 4:1-6)—examine fruit (doctrine, lifestyle, effects) to assess tree (genuine versus false). Throughout history, church has struggled balancing: don't judge prematurely (seeds need time to grow) versus recognize persistent bad fruit indicates bad tree. The principle remains: genuine faith inevitably produces corresponding fruit.
Questions for Reflection
What fruit (works, character, relationships, priorities) demonstrates the condition of your heart—is tree matching fruit?
How do you evaluate teachers, churches, and movements—what fruit indicates good versus corrupt trees?
What's the difference between immature fruit (genuine faith still growing) and bad fruit (false profession)?
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Analysis & Commentary
'Either make the tree good, and his fruit good; or else make the tree corrupt, and his fruit corrupt: for the tree is known by his fruit.' Jesus shifts from blasphemy teaching to principle: tree and fruit must match. You can't have good tree producing bad fruit or vice versa. The verb 'make' (ποιήσατε/poiēsate) means 'declare, consider, judge'—Jesus commands consistent judgment. If fruit is good (miracles healing, liberating, blessing), the tree must be good. If fruit is bad, tree is bad. The Pharisees' error: acknowledging good fruit (miracles) while claiming bad tree (demonic power). This is logically impossible. Reformed theology applies this broadly: genuine faith produces genuine fruit (James 2:17-20); false faith produces false fruit. Profession must match practice; words must align with works. The verse warns against inconsistency: you cannot praise Jesus's words while rejecting His authority, claim faith while living in unrepentant sin, confess Christ while denying Him in practice. Tree determines fruit; character determines conduct; inner reality produces outward expression.