Psalm 13: 5
But I have trusted in Thy lovingkindness; my heart shall rejoice in Thy salvation.
This is a psalm of David described as a prayer for help in trouble. This part of the psalm certainly does not sound like he is praying for help though. The structure of this prayer is so insightful. David begins with his woes but by verse three is makes his petition to the Lord. Then by verse 5 of this six verse psalm, he has shifted into trust, thanksgiving and praise. David knows that despite the appearance of some problems in his life, his God will rise up and save him. He confesses that his trust is in the Lord and that ends his troubles. He knows what the end of the story is going to be and he sings his praises to the Lord.