as He. This refers to the Father. Compare 1 John 2:6.
one with another. with one another. Not with fellow-believers, but with the Father and the Son.
Jesus Christ. The texts read "Jesus".
sin. App-128. Here is the Figure of speech Metalepsis. App-6.
Related Commentaries of 1 John 1:7
1 John 1:7
7 But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.