⁶ If we claim to have fellowship with him and yet walk in the darkness,^(A) we lie and do not live out the truth.^{(B) 7} But if we walk in the light,^(C) as he is in the light, we have fellowship with one another, and the blood of Jesus, his Son, purifies us from all^[a] sin.^(D)

⁸ If we claim to be without sin,^(A) we deceive ourselves and the truth is not in us.^{(B) 9} If we confess our sins, he is faithful and just and will forgive us our sins^(C) and purify us from all unrighteousness.^{(D) 10} If we claim we have not sinned,^(E) we make him out to be a liar^(F) and his word is not in us.^(G)

Love and Hatred for Fellow Believers

³ We know^(A) that we have come to know him^(B) if we keep his commands.^{(C) 4} Whoever says, “I know him,”^(D) but does not do what he commands is a liar, and the truth is not in that person.^(E)

⁵ But if anyone obeys his word,^(A) love for God^[a] is truly made complete in them.^(B) This is how we know^(C) we are in him: ⁶ Whoever claims to live in him must live as Jesus did.^(D)

⁹ Anyone who claims to be in the light but hates a brother or sister^[a](A) is still in the darkness.^{(B) 10} Anyone who loves their brother and sister^[b] lives in the light,^(C) and there is nothing in them to make them stumble.^{(D) 11} But anyone who hates a brother or sister^(E) is in the darkness and walks around in the darkness.^(F) They do not know where they are going, because the darkness has blinded them.^(G)

On Not Loving the World

¹⁵ Do not love the world or anything in the world.^(A) If anyone loves the world, love for the Father^[a] is not in them.^(B)

¹⁷ The world and its desires pass away,^(A) but whoever does the will of God^(B) lives forever.

¹⁹ They went out from us,^(A) but they did not really belong to us. For if they had belonged to us, they would have remained with us; but their going showed that none of them belonged to us.^(B)

²³ No one who denies the Son has the Father; whoever acknowledges the Son has the Father also.^(A)