What does it mean to be spiritually blind?

In Scripture, spiritual blindness illustrates the inability of unregenerate individuals to recognize their need for Christ and understand the gospel's truths. This condition persists until the Holy Spirit intervenes, granting sight to the blind. As seen in John 9, sinners may have a form of knowledge about God but lack true understanding. This blindness can be worsened by self-righteousness, leading people to reject the salvation offered in Christ. The transformative work of Christ is essential for opening eyes to the fullness of God’s grace, allowing individuals to see their true condition and the hope found in the gospel.