What does Matthew 12:35 mean?
What is the meaning of Matthew 12:35?

The good man

Jesus begins with a picture everyone can recognize: “The good man.” Scripture affirms that genuine goodness is the fruit of a heart changed by God (Romans 5:5; Ephesians 2:10). In Matthew 12 Jesus has just contrasted healthy and diseased trees (vv. 33-34); a tree made good by God naturally produces good fruit. The statement is literal—goodness observed in conduct reveals an inner life transformed by grace.


brings good things

Goodness is not passive. A redeemed person “brings” or actively produces good speech, actions, and attitudes. Note the present tense: it is habitual, not occasional (Galatians 5:22-23; Titus 2:14). Jesus links this directly to words in verse 34, showing that wholesome talk, forgiveness, generosity, and truth-telling all flow from this well.


out of his good store of treasure

Every heart has a treasury—what we value, meditate on, and remember (Psalm 119:11; Colossians 3:16). For the believer, that storehouse is packed with God’s Word, answered prayer, and the indwelling Spirit (John 14:26). Because the contents are good, the outflow is good. The literal sense is clear: what you have stored determines what you can distribute.


and the evil man

Jesus gives the sober counterpart. An “evil man” is not merely mistaken but morally corrupt (Proverbs 4:23). By rejecting Christ’s lordship, such a person remains in darkness (John 3:19-20). In context, the Pharisees who attributed Jesus’ miracles to Satan embody this category (Matthew 12:24).


brings evil things

Just as surely as a good heart produces good, an unregenerate heart produces “evil things”—lying, slander, selfishness, unbelief (Mark 7:21-23; James 3:6). Jesus stresses accountability: our words and deeds reveal the spiritual condition within (Matthew 12:36-37). No one can blame circumstances; the source is the heart.


out of his evil store of treasure

The evil person’s inner vault is stocked with resentment, pride, and unbelief (Romans 1:21-22). Because those are the valuables, they are what emerge. The literal message is unavoidable: what we continually deposit in the heart will inevitably be withdrawn in daily life (Proverbs 23:7).


summary

Matthew 12:35 declares a fixed spiritual law: the moral quality of a person’s heart determines the moral quality of that person’s words and actions. A heart made new by Christ will habitually release good, while a heart unredeemed will expel evil. Therefore, guarding the heart and filling it with God’s truth is essential, for from the overflow of that treasury come all the issues of life.

How does Matthew 12:34 challenge believers to examine their speech?
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