7 But *[Isa. 2:5] if we walk in the light, *[Ps. 104:2;1 Tim. 6:16] as he is in the light, we have fellowship with one another, and *Eph. 1:7;Heb. 9:14;1 Pet. 1:19;Rev. 5:9;7:14;12:11the blood of Jesus his Son cleanses us from all sin.