• Deuteronomy 29:4
  Yet the LORD has not given you a heart to perceive and eyes to see and ears to hear, to this very day.
   
• Matthew 13:10-16
  And the disciples came and said to Him, “Why do You speak to them in parables?” He answered and said to them, "Because it has been given to you to know the mysteries of the kingdom of heaven, but to them it has not been given. For whoever has, to him more will be given, and he will have abundance; but whoever does not have, even what he has will be taken away from him. Therefore I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand. And in them the prophecy of Isaiah is fulfilled, which says:
  " Hearing you will hear and shall not understand,
  And seeing you will see and not perceive;
  For the hearts of this people have grown dull.
  Their ears are hard of hearing,
  And their eyes they have closed,
  Lest they should see with their eyes and hear with their ears,
  Lest they should understand with their hearts and turn,
  So that I should heal them." But blessed are your eyes for they see, and your ears for they hear;
   
• 2 Corinthians 4:3-4
  But even if our gospel is veiled, it is veiled to those who are perishing, whose minds the god of this age has blinded, who do not believe, lest the light of the gospel of the glory of Christ, who is the image of God, should shine on them.
   
• Romans 1:18-19
  For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who suppress the truth in unrighteousness, because what may be known of God is manifest in them, for God has shown it to them.
   
• Luke 24:16
  But their eyes were restrained, so that they did not know Him.
   
• Romans 11:7-8
  What then? Israel has not obtained what it seeks; but the elect have obtained it, and the rest were blinded. Just as it is written:
  'God has given them a spirit of stupor,
  Eyes that they should not see
  And ears that they should not hear,
  To this very day.'
   

Related Scriptures

• Deuteronomy 28:28
  The LORD will strike you with madness and blindness and confusion of heart.
   
• Romans 1:20-21
  For since the creation of the world His invisible attributes are clearly seen, being understood by the things that are made, even His eternal power and Godhead, so that they are without excuse, because, although they knew God, they did not glorify Him as God, nor were thankful, but became futile in their thoughts, and their foolish hearts were darkened.
   
• Romans 10:1-2
  Brethren, my heart's desire and prayer to God for Israel is that they may be saved. For I bear them witness that they have a zeal for God, but not according to knowledge.
   
• Galatians 4:8
  But then, indeed, when you did not know God, you served those which by nature are not gods.