How is this for making a case with God? I've been really bad; so please help me. Yet, that is what is happening here. Under the weight of his sin, the psalmist is suffering and cries out for healing. His acknowledgment of sin is not the case for just deserts, but a statement of need. His only case is the righteousness and goodness of a gracious God.

" As for me, I said, 'O LORD, be gracious to me;
heal me, for I have sinned against you!'" -Psalm 41:4 (ESV)

 For people of faith who have a history with God, even when we doubt, we cry out to Him. Even when we waver, we never stray far from faith. Our teetering, pathetic faith is in a strong and good God and the mustard seeds of belief that we toss into the ground continue to move the mountains of despair.

" Awake! Why are you sleeping, O Lord?
Rouse yourself! Do not reject us forever!
Why do you hide your face?
Why do you forget our affliction and oppression?
For our soul is bowed down to the dust;
our belly clings to the ground.
Rise up; come to our help!
Redeem us for the sake of your steadfast love!" –Psalm 44:23-26 (ESV)