The theme of I John is assurance of salvation (1 John 5:13). What is true Christianity? True Christianity is that human beings can have fellowship with God. The apostles examined the risen Word of life with their own hands. Christians walk in the light which exposes their sins. They are not defensive, but confess sin. Confess? The prefix con means with and fess means to admit. We could say that we fess up agreeing with God’s opinion of our sins. We admit with God that we did wrong. We do not hide our sins in darkness, but bring them into the light of truth. 1 John 1:8 says that if we say that we HAVE no sin, we deceive ourselves, and the truth is not in us. How can we be cleansed? The blood of Jesus cleanses us.