Psalm 51

"According to the greatness of Thy compassion blot out my transgressions" (v1).  This psalm has historically been our pattern for repentance.  There are no excuses, no defenses; the psalmist appeals to God's mercy alone.  He realizes that his sin offends God (v4), and only God can cleanse him (v7).  The sinner yearns for more than forgiveness; he wants change.  "Create in me a clean heart ... renew a steadfast spirit within me" (v10).

This is the prayer God always answers.  He always accepts "a broken and a contrite heart," (v17) lovingly restoring us by grace.