Bible Verses About Spiritual Blindness: The wicked wilfully guilty of

Because that which is known of God is manifest among them, for God did manifest it to them,

for the invisible things of Him from the creation of the world, by the things made being understood, are plainly seen, both His eternal power and Godhead--to their being inexcusable;

because, having known God they did not glorify Him as God, nor gave thanks, but were made vain in their reasonings, and their unintelligent heart was darkened,