1 Yochanan (1 Jo) 1:5-7

And this is the message which we have heard from him and proclaim to you: God is light, and there is no darkness in him — none! If we claim to have fellowship with him while we are walking in the darkness, we are lying and not living out the truth. But if we are walking in the light, as he is in the light, then we have fellowship with each other, and the blood of his Son Yeshua purifies us from all sin.