If we say we have fellowship with him while we walk in darkness, we lie and do not practice the truth.

If we say we have no sin, we deceive ourselves, and the truth is not in us.

Whoever says “I know him” but does not keep his commandments is a liar, and the truth is not in him,

I write to you, not because you do not know the truth, but because you know it, and because no lie is of the truth.

Little children, let us not love in word or talk but in deed and in truth.

By this we shall know that we are of the truth and reassure our heart before him;

We are from God. Whoever knows God listens to us; whoever is not from God does not listen to us. By this we know the Spirit of truth and the spirit of error.

Testimony Concerning the Son of God

This is he who came by water and blood—Jesus Christ; not by the water only but by the water and the blood. And the Spirit is the one who testifies, because the Spirit is the truth.