Bible Verses About Spiritual Blindness: The wicked wilfully guilty of

Because that which is known of God is manifest in them. For God hath manifested it unto them.

For the invisible things of him from the creation of the world are clearly seen, being understood by the things that are made. His eternal power also and divinity: so that they are inexcusable.

Because that, when they knew God, they have not glorified him as God or given thanks: but became vain in their thoughts. And their foolish heart was darkened.