Create in Me a Clean Heart, O God
To the choirmaster. A Psalm of David, when Nathan the prophet went to him, after he had gone in to Bathsheba.
51:1 Have mercy on me, O God,
according to your steadfast love;
according to your abundant mercy
blot out my transgressions.
2 Wash me thoroughly from my iniquity,
and cleanse me from my sin! (ESV)