How does God's mercy relate to His sovereignty?

God's mercy is a key aspect of His sovereignty, as outlined in Romans 9, where it states that He will have mercy on whom He will have mercy. This underscores that mercy is not a matter of human effort or will, but rather a sovereign act of God's grace. The message of mercy serves to exalt God's glory, as it is bestowed upon sinners who deserve judgment. Understanding this truth reinforces the belief that salvation is entirely the work of God, further asserting His sovereign right to show mercy and grace upon His people.