1 John 1:5-6

And this is the message [the message of promise] which we have heard from Him and now are reporting to you: God is Light, and there is no darkness in Him at all [no, not in any way]. [So] if we say we are partakers together and enjoy fellowship with Him when we live and move and are walking about in darkness, we are [both] speaking falsely and do not live and practice the Truth [which the Gospel presents].