Create in me a clean heart

From Psalm 51:

Have mercy on me, O God, according to Thy steadfast love;
According to Thy 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 Thee, Thee only, have I sinned, and done that which is evil in Thy sight,
So that Thou art justified in Thy sentence and blameless in Thy judgment.
Purge me with hyssop, and I shall be clean; wash me, and I shall be whiter than snow.
Hide Thy face from my sins, and blot out all my iniquities.
Create in me a clean heart, O God, and put a new and right spirit within me.
Cast me not away from Thy presence, and take not Thy Holy Spirit from me.
Restore to me the joy of Thy salvation, and uphold me with a willing spirit.
The sacrifice acceptable to God is a broken spirit;
A broken and contrite heart, O God, Thou wilt not despise.