13 Therefore I speak to them in parables, because seeing they do not see, and hearing, they do not hear, neither do they understand. 14 And in them the prophecy of Isaiah is fulfilled, which says, 'In hearing you will hear, but will not understand, and seeing you will see, but not perceive. 15 For the heart of this people has grown dull, and their ears are sluggish in hearing, and they have closed their eyes, otherwise they might see with their eyes, and hear with their ears, and understand with their heart, and turn back, and I would heal them.' 16 "But blessed are your eyes, for they see; and your ears, for they hear.
Bible verses about "blindness" | NHEB
14 Leave them alone. They are blind guides of the blind. If the blind guide the blind, both will fall into a pit."
8 For you were once darkness, but are now light in the Lord. Walk as children of light,
11 But he who hates his brother is in the darkness, and walks in the darkness, and does not know where he is going, because the darkness has blinded his eyes.