"Be merciful to me, Lord, for I am in distress; my eyes grow weak with sorrow, my soul and body with grief." – Psalm 31:9 (NIV)
Thought: I kind of want to know the context. It's weird to ask God for forgiveness/mercy when you are feeling weak/depressed. You have to figure He knows what you;re growing through and should be turned to as a source of strength rather than sought for mercy from His wrath. It's always strange to me when people apologize for things they can't necessarily control or things that aren't their fault.