He who covers his sins will not prosper, but whoever confesses and forsakes them will have mercy. Proverbs 28:13

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 that we have not sinned, we make Him a liar, and His word is not in us. 1 John 1:9–10

Therefore bear fruits worthy of repentance… Matthew 3:8