If they shall confess their iniquity, and the iniquity of their fathers, with their trespass which they trespassed against me, and that also they have walked contrary unto me;
And [that] I also have walked contrary unto them, and have brought them into the land of their enemies; if then their uncircumcised hearts be humbled, and they then accept of the punishment of their iniquity:
Then will I remember my covenant with Jacob, and also my covenant with Isaac, and also my covenant with Abraham will I remember; and I will remember the land.
I acknowledged my sin unto thee, and mine iniquity have I not hid. I said, I will confess my transgressions unto the LORD; and thou forgavest the iniquity of my sin. Selah.
He that covereth his sins shall not prosper: but whoso confesseth and forsaketh [them] shall have mercy.
1 John 1:9
If we confess our sins, he is faithful and just to forgive us [our] sins, and to cleanse us from all unrighteousness.
For it is written, [As] I live, saith the Lord, every knee shall bow to me, and every tongue shall confess to God.