Parallel
Luke 11:34
King James Version (1769 Blayney revision, with Apocrypha) · Berean Standard Bible
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.
Your eye is the lamp of your body. When your eyes are good (note: Literally When your eye is sound; see Proverbs 22:9.), your whole body also is full of light. But when they are bad (note: Literally when it is evil; see Proverbs 23:6 and Proverbs 28:22.), your body is full of darkness.