But if we walk in the (d) light, as he is in the light, we have fellowship one with another, (4) and the blood of Jesus Christ his Son cleanseth us from all sin.
(d) God is said to be light by his own nature, and to be in light, that is to say, in that everlasting infinite blessedness: and we are said to walk in light in that the beams of that light shine to us in the Word. (4) A digression the matter at hand, to the remission of sins: for this our sanctification who walk in the light, is a testimony of our joining and knitting together with Christ: but because this our light is very dark, we must obtain another benefit in Christ, that is, that our sins may be forgiven us being sprinkled with his blood: and this in conclusion is the support and anchor of our salvation.