Psalms 51:1-4 NRSV
Have mercy on me, O God,
according to your steadfast love;
according to your abundant mercy
blot out my transgressions.
Wash me thoroughly from my iniquity,
and cleanse me from my sin.
For I know my transgressions,
and my sin is ever before me.
Against you, you alone, have I sinned,
and done what is evil in your sight,
so that you are justified in your sentence
and blameless when you pass judgment.
NRSV: New Revised Standard Version