What does the Bible say about God's kindness to sinners?

In 2 Samuel 9, we see a beautiful manifestation of God's kindness towards undeserving sinners. David sought out Mephibosheth, the son of Jonathan, and showed him kindness for Jonathan's sake, despite Mephibosheth's lameness and the fact that he could not earn such favor. This narrative reminds us that God's grace is not based on our merit but on His purpose and the covenant love He extends to His people. David's kindness is a reflection of God's mercy towards all who come to Him in humility, acknowledging their unworthiness.