'A Psalm of Penitence' is this week's theme. Arthur begins with a cry for mercy and Psalm 51:1-2.
For the director of music. A psalm of David. When the prophet Nathan came to him after David had committed adultery with Bathsheba.
1 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.