Matthew 6:23

But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness!

Matthew 6:23 (KJV)

Context

Matthew 6:23 appears in the Sermon on the Mount, where Jesus teaches about righteous living and the priorities of God’s kingdom. This verse belongs to a short passage about the eye as the lamp of the body, beginning in Matthew 6:22. Together these verses form one lesson about spiritual perception: what we set our hearts on shapes the whole person.

Meaning

Jesus uses the eye as a picture of our inner spiritual vision. In biblical culture, an “evil eye” could mean a covetous or envious disposition. The Greek word translated “evil” (ponēros) can carry that sense of stinginess or avarice. If a person’s outlook is controlled by covetousness, Jesus says, the whole body is full of darkness. That means the mind and judgment become so influenced by greed that a person can no longer discern what is right before God or what is fitting toward others. The faculties of the soul become enslaved to that corrupt desire.

The second half of the verse intensifies the warning. If the light within us is actually darkness, then that darkness is exceedingly great. This describes a condition where what should be the source of spiritual illumination has become corrupted, resulting in profound blindness. The very thing meant to guide us now leads us astray.

Application

Matthew 6:23 urges us to guard our hearts and minds against corrupt influences. We are to examine what we value, what we fix our attention on, and whether our desires are shaped by God’s truth or by worldly greed. A pure heart, fixed on God, allows His light to fill our thoughts, attitudes, and actions. When we recognize that our inner vision has become darkened, we can repent and turn back to the light of God’s Word.

Reflection

How great is the darkness when the light within us is darkness! This verse calls us to honest self-examination. We cannot assume that our inner light is healthy simply because we know the right words. We must ask God to search our hearts, reveal any covetous or corrupt desires, and restore in us a single, pure focus on Him. Only then can we walk in the light He gives.