Jesus says: “I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life” (John 8:12).
“And this is the condemnation, that light is come into the world, and men loved darkness rather than light, because their deeds were evil. For every one that doeth evil hateth the light, neither cometh to the light, lest his deeds should be reproved. But he that doeth truth cometh to the light, that his deeds may be made manifest, that they are wrought in God” (John 3:19-21).
“As long as I am in the world, I am the light of the world” (John 9:5).
“I am with you alway, even unto the end of the world” (Matthew 28:20).