[4] And write we that joy full. [5] This then which we have heard of him, and declare that God light, and in him no darkness at all. [6] If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth: [7] But if we walk in the light, as he in the light, we have fellowship one with another, and the blood of Jesus his Son cleanseth from all sin.