1 Yochanan 1:5-7

This is the message which we have heard from him and announce to you, that God is light, and in him is no darkness at all. If we say that we have fellowship with him and walk in the darkness, we lie and don’t tell the truth. But if we walk in the light as he is in the light, we have fellowship with one another, and the blood of Yeshua the Messiah his Son, cleanses us from all sin.