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 6:23KJV
Know the Bible

What does Matthew 6:23 mean?

Matthew 6:23 warns that if a person’s perspective or way of seeing things (“eye”) is bad or unhealthy, their whole life will be filled with darkness, meaning confusion or moral blindness. Jesus emphasizes that if what someone thinks is “light” (good or true) is actually darkness, their situation is much worse than they realize.

In this verse, Jesus is speaking to a crowd during the Sermon on the Mount, teaching about the importance of one’s inner life and motives. He uses the image of the “eye” as a metaphor for how a person views the world and makes choices, connecting it to spiritual clarity or blindness. The verse highlights how self-deception or a corrupt outlook can deeply affect a person’s whole being.

The Greek behind Matthew 6:23

  • ὀφθαλμός (ophthalmos, “eye”): This word is used here as a metaphor for a person’s outlook or perception, not just physical sight. The “eye” represents how someone sees and interprets life.
  • πονηρός (ponēros, “evil”): This word means more than just “bad”; it often carries the sense of being morally corrupt or unhealthy. An “evil eye” in this context points to a selfish, greedy, or envious perspective.
  • σκότος (skotos, “darkness”): This word refers to both literal darkness and, figuratively, to ignorance, confusion, or moral blindness. The verse uses it to describe the result of a corrupt perspective.
  • φῶς (phōs, “light”): This word means light in both a physical and spiritual sense. The warning is that if what someone believes to be “light” is actually “darkness,” their confusion is very deep.

Why Matthew 6:23 matters

  • Matthew 6:23 clarifies that spiritual blindness is not just about ignorance, but about having a fundamentally wrong way of seeing the world, which can affect every part of a person’s life.
  • The verse connects closely to the surrounding teaching about treasures and priorities (Matthew 6:19–24), showing that inner motives and perspectives shape outward actions.
  • Jesus’ warning highlights the danger of self-deception—thinking one’s life is guided by “light” when it is actually darkness—making honest self-examination crucial.

Where else these words appear

“darkness” Greek G4652 · used in 3 verses

  • Luke 11:34 The light of the body is the eye: therefore when thine eye is single, thy whole body also is full of light; but when thine eye is evil, thy body also is full of darkness.
  • Luke 11:36 If thy whole body therefore be full of light, having no part dark, the whole shall be full of light, as when the bright shining of a candle doth give thee light.

“great” Greek G4214 · used in 27 verses

  • Matthew 7:11 If ye then, being evil, know how to give good gifts unto your children, how much more shall your Father which is in heaven give good things to them that ask him?
  • Mark 8:5 And he asked them, How many loaves have ye? And they said, Seven.
  • Luke 16:5 So he called every one of his lord's debtors unto him, and said unto the first, How much owest thou unto my lord?

“darkness” Greek G4655 · used in 31 verses

  • Matthew 4:16 The people which sat in darkness saw great light; and to them which sat in the region and shadow of death light is sprung up.
  • John 3:19 And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil.
  • Ephesians 5:11 And have no fellowship with the unfruitful works of darkness, but rather reprove them.

“light” Greek G5457 · used in 59 verses

  • Matthew 4:16 The people which sat in darkness saw great light; and to them which sat in the region and shadow of death light is sprung up.
  • John 3:21 But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God.
  • Romans 2:19 And art confident that thou thyself art a guide of the blind, a light of them which are in darkness,