8 If we say that we have no sin, we deceive ourselves, and the truth is not in us. 9 If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. 10 If we say that we have not sinned, we make Him a liar, and His word is not in us. (1 John 1:8–10, NKJV)
It is notable that the apostle John addresses Christians in this passage – those who “walk in the light” are warned not to deny their sins (1 John 1:5-7). Yes, Christians can sin, and Christians can yield to the temptation of denying their sin. But, to do so is a futile exercise of self-righteous deception. Denying one’s sin is a failure to take personal responsibility for sin. The truth is not in the person who denies his own sin. On the other hand, God is faithful to forgive and cleanse our unrighteousness when we freely and fully acknowledge our sins to Him. When you are tempted to deny your sin, remember that to do so makes you a liar. Furthermore, you also make God a liar, because God’s word says we all have sinned and fall short of His glory (Romans 3:23). Christians refuse to be controlled and ruled by sin (Romans 6:6-14). When you sin, do not become a liar by denying it. Confess your sins to God. Repent and pray, and God will forgive you (Acts 8:22). What joyous release! What wonderful mercy we have in Christ.