Psalm 51:1-2

Have mercy on me, O God, because of your loyal love! Because of your great compassion, wipe away my rebellious acts! Wash away my wrongdoing! Cleanse me of my sin!

David has committed adultery with Bathsheba and sent her husband Uriah to the front lines of battle to be killed. Through the prophet Nathan, God tells David that the son that was just born to him would die because of David's sin. For seven days after this, David pleaded before God for the child's life, through fasting and prayer. It is these kinds of words, like we see in Psalm 51, that pour out from David's heart once he realizes that he sinned against the Lord. Thanks to Jesus Christ, being deceived into sin is not the end of our relationship with God, rather it should be a platform for repentance and prayer.