Psalm 51:1-6  For the director of music. A psalm of David. When the prophet Nathan came to him after David had committed adultery with Bathsheba.

Have mercy on me, O God, according to your unfailing love; according to your great
compassion blot out my transgressions. 2 Wash away all my iniquity and cleanse me from my sin. 3 For I know my transgressions, and my sin is always before me. 4 Against you, you only, have I sinned and done what is evil in your sight, so that you are proved right when you speak and justified when you judge. 5 Surely I was sinful at birth, sinful from the time my mother conceived me. 6 Surely you desire truth in the inner parts; you teach me wisdom in the inmost place.