Bible Verses About Pardon: To those who confess their sins

David said to Natan, "I have sinned against ADONAI." Natan said to David, "ADONAI also has taken away your sin. You will not die.

When I acknowledged my sin to you, when I stopped concealing my guilt, and said, "I will confess my offenses to ADONAI"; then you, you forgave the guilt of my sin. (Selah)

If we acknowledge our sins, then, since he is trustworthy and just, he will forgive them and purify us from all wrongdoing.