David committed adultery with Bathsheba and had her husband Uriah killed to cover it up. Psalm 51 reflects David's repentance and plea for forgiveness from God. He acknowledges sin is against God and begs for mercy, cleansing from sin, and a fresh start. Though we are born sinful, God offers forgiveness through Jesus and a new life for those who trust in him. Even failures can find restoration, as God loves to give people fresh starts.