How do we know that God is sovereign over sin?

Genesis 3 clearly illustrates God's sovereignty, even in the context of sin entering the world. In the same chapter where humanity falls, God provides a promise of redemption through the Seed of the Woman. This enmity was initiated by God Himself, indicating that He controls the narrative of salvation and sin. Therefore, although sin has consequences, God's predetermined plan ensures that He is always in control, bringing victory through Christ. This underscores the importance of God’s sovereignty in historic Reformed theology, where everything occurs according to His divine will.