David’s prayer began: “How long, O Lord? Will you forget me forever? How long will you hide your face from me (Psalm 13:1)?”
Though he still waited for God to answer, his prayer ended: “I have trusted in your steadfast love; my heart shall rejoice in your salvation. I will sing to the Lord, because he has dealt bountifully with me (Psalm 13:5-6).
Pray with cheerful expectation.