Bible Verses About spiritual blindness

Let them alone: they be blind leaders of the blind. And if the blind lead the blind, both shall fall into the ditch.

And Jesus said, For judgment I am come into this world, that they which see not might see; and that they which see might be made blind.

But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know them, because they are spiritually discerned.

But if our gospel be hid, it is hid to them that are lost:

In whom the god of this world hath blinded the minds of them which believe not, lest the light of the glorious gospel of Christ, who is the image of God, should shine unto them.