5 Now the message that we have heard from his Son and announce is this: God is light, and there is no darkness at all in him.

6 If, then, we say that we have fellowship with him, yet at the same time live in the darkness, we are lying both in our words and in our actions.

7 But if we live in the light---just as he is in the light---then we have fellowship with one another, and the blood of Jesus, his Son, purifies us from every sin.