If we say that we have fellowship with Him and yet walk in the darkness, we lie and do not practice the truth. But if we walk in the light as He Himself is in the light, we have fellowship with one another, and the blood of Jesus, His Son, cleanses us from all sin. (1 John 1:6-7)
I have fellowship with my Father who is in the light. I walk in the light.
I walk in Christ, who is the light of men and came down from the Father. (John 1:4; John 6:38) He walked perfectly in the Holy Spirit (John 5:19; Luke 4:1)
And now I walk in the Holy Spirit by faith.
But I don’t do it perfectly. If we say that we have no sin, we are deceiving ourselves, and the truth is not in us (1 John 1:8).
I sin, yet I walk in the light because the blood of Jesus cleanses me from all sin.
What about walking in darkness? What does that mean? It doesn’t mean sin because in verse eight, we see that we all sin. It can’t simply mean denying Christ or saying we don’t believe in Him because verse six says we can claim fellowship with Him, yet walk in darkness.
So what is walking in darkness?
And by this we know that we have come to know Him, if we keep His commandments (1 John 2:3). The one who says, “I have come to know Him,” and does not keep His commandments is a liar, and the truth is not in Him (1 John 2:4).
Walking in light is keeping His commandments.
Walking in darkness is not keeping His commandments.
I can say whatever I want, but if I do not keep His commandments — keep the truth, love our brothers, abide in Christ, and walk in righteousness — I am walking in darkness (1 John 2).
Yet if I sin, Jesus is my advocate. He is my propitiation (1 John 2:1-2).
And as I abide in Him, keeping His commandments, I am cleansed (1 John 1:7). As I abide in Him, keeping His commandments, I walk in light.