Acts 19:18

And were baptized of him in Jordan, confessing their sins.

Then shall ye remember your own evil ways, and your doings that were not good, and shall lothe yourselves in your own sight for your iniquities and for your abominations.

That thou mayest remember, and be confounded, and never open thy mouth any more because of thy shame, when I am pacified toward thee for all that thou hast done, saith the Lord GOD.

And Aaron shall lay both his hands upon the head of the live goat, and confess over him all the iniquities of the children of Israel, and all their transgressions in all their sins, putting them upon the head of the goat, and shall send him away by the hand of a fit man into the wilderness: a fit...: Heb. a man of opportunity

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;

Only acknowledge thine iniquity, that thou hast transgressed against the LORD thy God, and hast scattered thy ways to the strangers under every green tree, and ye have not obeyed my voice, saith the LORD.

He looketh upon men, and if any say, I have sinned, and perverted that which was right, and it profited me not; He...: or, He shall look upon men, and say He will deliver his soul from going into the pit, and his life shall see the light. He...: or, He hath delivered my soul, etc, and my life

For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.

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.

If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.

He that covereth his sins shall not prosper: but whoso confesseth and forsaketh them shall have mercy.