Meaning of Matthew 12:35

This verse from Matthew 12:35 articulates a fundamental principle of human nature and morality: that the outward actions and words of a person are a direct outflow of their inner disposition. Jesus is asserting that what a person "brings out" – their speech, deeds, and attitudes – is not random but originates from a reservoir of what has been accumulated within their heart. This internal storehouse is characterized as either "good" or "evil," directly correlating to the quality of the external manifestations. Therefore, the verse serves as a diagnostic tool, suggesting that one can discern the true nature of an individual by observing what they consistently produce.

Context and Background

Jesus delivers this teaching in the immediate aftermath of a confrontation with the Pharisees, who have accused him of casting out demons by the power of Beelzebul, the prince of demons (Matthew 12:22-32). Jesus refutes their accusation, explaining that his power comes from God. He then rebukes them for their malicious interpretation, calling them "brood of vipers" and emphasizing that their wickedness is evident in their words. This verse, therefore, is a direct consequence of their accusation; their evil words reveal the evil stored within them. Prior to this, Jesus had spoken about the importance of the heart as the source of what comes out, stating, "For out of the overflow of the heart the mouth speaks" (Matthew 12:34). This verse in question is a powerful amplification of that preceding statement.

Key Themes and Messages

• The Heart as the Source: The primary theme is the centrality of the human heart (or inner disposition) as the origin of all outward expression. What is stored within, whether good or evil, will inevitably be released.
• Moral Accountability: The verse implies a profound moral accountability for one's inner state. The "storage" is not passive but is actively cultivated, either through receptivity to good or through dwelling on evil.
• Inherent Nature: It suggests that individuals have an inherent moral orientation, which is either fundamentally good or evil, and this orientation dictates their actions and words.
• Discernment: By understanding this principle, one can discern the character of others, and importantly, one can also examine their own heart.

Spiritual Significance and Application

Spiritually, this verse is a call to introspection and transformation. It means that simply performing good deeds without a transformed heart is superficial. True righteousness originates from a heart renewed by God. For believers, the "good stored up" comes from their relationship with Christ, the Holy Spirit's indwelling, and the assimilation of God's word. Conversely, a heart unyielded to God will continue to produce "evil things." The application is to actively cultivate a heart filled with God's truth, love, and righteousness, through prayer, scripture, and fellowship, so that good may naturally overflow.

Relation to the Broader Biblical Narrative

This teaching aligns with the consistent biblical emphasis on the importance of the inner person. From the Old Testament's call to "circumcise your hearts" (Deuteronomy 10:16) to the New Testament's focus on the "renewing of your mind" (Romans 12:2) and the concept of the heart being deceitful above all things (Jeremiah 17:9), the Bible repeatedly stresses that external compliance without internal change is insufficient. Jesus' teaching here is a foundational element of the new covenant, which promises a transformation of the heart by the Spirit.

Analogies

• A Wellspring: Imagine a wellspring. If the underground source is pure and clear, the water that flows out will be pure. If the source is polluted, the water will be tainted. The heart is the wellspring, and its contents are the water that flows out in our words and actions.
• A Computer's Hard Drive: A computer can only access and display files that have been stored on its hard drive. Similarly, a person's speech and actions are limited to the "files" of good or evil that have been stored in their heart.
• A Tree and its Fruit: Jesus himself uses this analogy elsewhere, stating, "By their fruit you will recognize them. Do people pick grapes from thorn bushes, or figs from thistles? Likewise, every good tree bears good fruit, but every bad tree bears bad fruit" (Matthew 7:16-17). The fruit is what is brought out, and the tree's nature is what is stored within.

Relation to Other Verses

• Matthew 12:34: "For out of the overflow of the heart the mouth speaks." This verse directly precedes Matthew 12:35 and sets the stage by explaining how the heart's contents are manifested – through speech.
• Luke 6:45: "The good, out of the good treasure of his heart, brings forth good; and the evil, out of the evil treasure, brings forth evil. For out of the abundance of the heart his mouth speaks." This is the parallel passage in Luke, confirming the teaching and its emphasis on the heart's "treasure."
• Proverbs 4:23: "Above all else, guard your heart, for it is the source of all that you do." This Old Testament proverb echoes the same sentiment, highlighting the heart's supreme importance as the origin of life's activities.
• Romans 10:9-10: "If you declare with your mouth, 'Jesus is Lord,' and believe in your heart that God raised him from the dead, you will be saved. For it is with your heart that you believe and are justified, and it is with your mouth that you profess your faith and are saved." This passage shows the connection between inner belief (heart) and outward confession (mouth) in salvation.
• James 3:10-12: James discusses how the same spring cannot produce both fresh and salt water, illustrating the incompatibility of good and evil flowing from the same source, thereby reinforcing the principle of Matthew 12:35.