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.
This passage is remarkable; and from it we first learn, that the expiation of Christ, effected by his death, does then properly belong to us, when we, in uprightness of heart, do what is right and just for Christ is no redeemer except to those who turn from iniquity, and lead a new life. If, then, we desire to have God propitious to us, so as to forgive our sins, we ought not to forgive ourselves. In short, remission of sins cannot be separated from repentance, nor can the peace of God be in those hearts, where the fear God does not prevail. 