Why is God's mercy considered sovereign?

God's mercy is considered sovereign because it originates from His will and is executed according to His purpose, independent of any human merit. The sermon articulates that God's grace is not contingent upon our actions or worthiness; instead, it flows from His nature and decision to save His people through Christ. This truth is liberating for believers, as it reassures us that our salvation and His mercy do not rely on our performance but on His eternal covenant promises. The speaker stresses that before creation, God's plan for redemption was established, affirming His authority and sovereignty over mercy.