Matthew 13:13-14
This is why I speak to them in parables, because seeing they do not see, and hearing they do not hear, nor do they understand.
Mark 4:12
so that 'seeing they may see but not perceive, and hearing may hear but not understand; lest they should turn again, and be forgiven.'"
Luke 8:10
he said, "To you it has been given to know the secrets of the kingdom of God; but to others it is given in parables, so that 'Seeing they may not see, and hearing they may not understand.'
John 9:39-41
Jesus said, "For judgment I have come into this world, that those who do not see may see, and that those who see may become blind."
John 12:40
"He has blinded their eyes and hardened their hearts, lest they should see with their eyes, and understand with their hearts and turn, so that I should heal them."
Mark 8:17-18
Being aware of it, Jesus said to them, "Why do you discuss the fact that you have no bread? Do you not yet perceive or understand? Are your hearts hardened?
Acts 7:51-52
"You stiff-necked people, uncircumcised in heart and ears, you always resist the Holy Spirit. You are doing just as your fathers did.
Acts 28:26-27
saying, 'Go to this people and say, "you will be ever hearing, but will never understand; and you will be ever seeing, but will never perceive.
Romans 11:7-8
What then? Israel did not obtain what it sought. The elect obtained it, but the rest were hardened,
2 Corinthians 3:14
But their minds were hardened; for to this day, when they read the old covenant, the same veil remains unlifted, because only in Christ is it removed.
2 Corinthians 4:3-4
And even if our gospel is veiled, it is veiled to those who are perishing.
Ephesians 4:18
they are darkened in their understanding, alienated from the life of God because of the ignorance that is in them, due to the hardness of their heart;
2 Thessalonians 2:10-11
and with all the deception of wickedness for those who are to perish, because they refused to love the truth and so be saved.