How does the concept of being spiritually blind relate to God's saving grace?

In John 9:39, Jesus articulates that He came into the world for judgment: 'that they which see not might see; and that they which see might be made blind.' This duality illustrates the transformative work of God’s grace. Those who recognize their spiritual blindness—acknowledging their inability to save themselves—are the ones to whom grace is given. God opens their eyes and reveals spiritual truths through the preaching of the Gospel. Thus, understanding our incapacity and helplessness leads us to rely entirely on God’s mercy and grace for salvation.