But if your eyes are unhealthy, your whole body will be full of darkness. If then the light within you is darkness, how great is that darkness! (Matthew 6:23)

Your eye is the lamp of your body. When your eyes are healthy, your whole body also is full of light. But when they are unhealthy, your body also is full of darkness. See to it, then, that the light within you is not darkness. (Luke 11:34-35)

When Jesus spoke again to the people, he said, “I am the light of the world Whoever follows me will never walk in darkness, but will have the light of life.” (John 8:12)

I have come into the world as a light, so that no one who believes in me should stay in darkness. (John 12:46)