But thou, O Lord, art a God full of compassion, and gracious, longsuffering, and plenteous in mercy and truth. O turn unto me, and have mercy upon me; give thy strength unto thy servant, and save the son of thine handmaid. Shew me a token for good; that they which hate me may see it, and be ashamed: because thou, LORD, hast holpen me, and comforted me.
(Psalm 86:15-17)
1/ What David knew his God to be
2/ The petitions he makes to his God