If we say that we have fellowship with Him and yet walk in the darkness, we lie and do not practice the truth;

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

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;

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

We will know by this that we are of the truth, and will set our heart at ease before Him,

This is the One who came by water and blood, Jesus Christ; not with the water only, but with the water and with the blood. It is the Spirit who testifies, because the Spirit is the truth.