Why is it important to understand God's control over our free will?

The doctrine of God's sovereignty accentuates the reality that true free will exists only in God. As the sermon illustrates, humanity, in its natural state, cannot choose God or good without divine intervention. This reveals the essential truth that we are entirely dependent on God's grace for salvation, as underscored in scriptures like Romans 9:19-21. Recognizing this helps believers understand the depths of their depravity and the magnitude of Christ's redemptive work, leading to humble reliance on God's mercy.