Bible Verses About Spiritual Blindness: The wicked wilfully guilty of

because that which is known of God is manifest in them; for God manifested it unto them.

For the invisible things of him since the creation of the world are clearly seen, being perceived through the things that are made, even his everlasting power and divinity; that they may be without excuse:

because that, knowing God, they glorified him not as God, neither gave thanks; but became vain in their reasonings, and their senseless heart was darkened.