Context / meaning
1 John 1 [1.] That which was from the beginning, that which we have heard, that which we have seen with our eyes, that which we saw, and our hands touched, concerning the Word of life (and the life was revealed, and we have seen, and testify, and declare to you the life, the eternal life, which was with the Father, and was revealed to us); that which we have seen and heard we declare to you, that you also may have fellowship with us. Yes, and our fellowship is with the Father, and with his Son, Jesus Christ. And we write these things to you, that our joy may be fulfilled.
1 John 1 [5.] This is the message which we have heard from him and announce to you, that God is light, and in him is no darkness at all. If we say that we have fellowship with him and walk in the darkness, we lie, and don’t tell the truth. But if we walk in the light, as he is in the light, we have fellowship with one another, and the blood of Jesus Christ, his Son, cleanses us from all sin. If we say that we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and righteous to forgive us the sins, and to cleanse us from all unrighteousness. [10.] If we say that we haven’t sinned, we make him a liar, and his word is not in us.
1 John 2 [1.] My little children, I write these things to you so that you may not sin. If anyone sins, we have a Counselor[a] with the Father, Jesus Christ, the righteous. And he is the atoning sacrifice[b] for our sins, and not for ours only, but also for the whole world. This is how we know that we know him: if we keep his commandments. One who says, “I know him,” and doesn’t keep his commandments, is a liar, and the truth isn’t in him. 1 John 2 [5.] But whoever keeps his word, God’s love has most certainly been perfected in him. This is how we know that we are in him: he who says he remains in him ought himself also to walk just like he walked.
a. 1 John 2:1 Greek παρακλητον: Counselor, Helper, Intercessor, Advocate, and Comforter.
b. 1 John 2:2 “atoning sacrifice” is from the Greek “ιλασμος”, an appeasing, propitiating, or the means of appeasement or propitiation—the sacrifice that turns away God’s wrath because of our sin.