He who conceals his sins will not prosper, but whoever confesses and renounces them will find mercy. Proverbs 28:13

If we say we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness. If we say we have not sinned, we make Him out to be a liar, and His word is not in us. 1 John 1:8-9