I John 1:6-8

⁶If we say that we have fellowship with Him and yet walk in the darkness, we lie and do not practice the truth; ⁷but 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. ⁸If we say that we have no sin, we are deceiving ourselves and the truth is not in us.