9 Bible Verses about Spiritual Blindness, In Unbelievers

The way of the wicked is like darkness;
They do not know over what they stumble.

But a natural man does not accept the things of the Spirit of God, for they are foolishness to him; and he cannot understand them, because they are spiritually appraised.

They do not know, nor do they understand, for He has smeared over their eyes so that they cannot see and their hearts so that they cannot comprehend.

“Son of man, you live in the midst of the rebellious house, who have eyes to see but do not see, ears to hear but do not hear; for they are a rebellious house.

He said, “Go, and tell this people:
‘Keep on listening, but do not perceive;
Keep on looking, but do not understand.’
“Render the hearts of this people insensitive,
Their ears dull,
And their eyes dim,
Otherwise they might see with their eyes,
Hear with their ears,
Understand with their hearts,
And return and be healed.”

The Light shines in the darkness, and the darkness did not comprehend it.

Those of the Pharisees who were with Him heard these things and said to Him, “We are not blind too, are we?” Jesus said to them, “If you were blind, you would have no sin; but since you say, ‘We see,’ your sin remains.

Therefore I speak to them in parables; because while seeing they do not see, and while hearing they do not hear, nor do they understand.

And He said, “To you it has been granted to know the mysteries of the kingdom of God, but to the rest it is in parables, so that seeing they may not see, and hearing they may not understand.