 The light we give off is from Jesus. Without light, there's no life. And so we're the light so they can see the light that's in Jesus. Ephesians 5a says, Walk as children of light. Philippians 2.15, Among whom you shine as lights in the world. John 5.35, Jesus spoke of John the Baptist as a burning and a shining light. You and I as believers, we are light in a dark and a sinful world.