2 Corinthians 3:14
But their minds were closed. For to this day the same veil remains at the reading of the old covenant. It has not been lifted, because only in Christ can it be removed.

2 Corinthians 2:15-16
For we are to God the sweet aroma of Christ among those who are being saved and those who are perishing. / To the one we are an odor that brings death, to the other a fragrance that brings life. And who is qualified for such a task?

Romans 11:7-8
What then? What Israel was seeking, it failed to obtain, but the elect did. The others were hardened, / as it is written: “God gave them a spirit of stupor, eyes that could not see, and ears that could not hear, to this very day.”

1 Corinthians 1:18
For the message of the cross is foolishness to those who are perishing, but to us who are being saved it is the power of God.

John 12:40
“He has blinded their eyes and hardened their hearts, so that they cannot see with their eyes, and understand with their hearts, and turn, and I would heal them.”

Matthew 13:13-15
This is why I speak to them in parables: ‘Though seeing, they do not see; though hearing, they do not hear or understand.’ / In them the prophecy of Isaiah is fulfilled: ‘You will be ever hearing but never understanding; you will be ever seeing but never perceiving. / For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Isaiah 6:9-10
And He replied: “Go and tell this people, ‘Be ever hearing, but never understanding; be ever seeing, but never perceiving.’ / Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”

Romans 1:21-22
For although they knew God, they neither glorified Him as God nor gave thanks to Him, but they became futile in their thinking and darkened in their foolish hearts. / Although they claimed to be wise, they became fools,

1 John 2:11
But whoever hates his brother is in the darkness and walks in the darkness. He does not know where he is going, because the darkness has blinded his eyes.

Ephesians 4:18
They are darkened in their understanding and alienated from the life of God because of the ignorance that is in them due to the hardness of their hearts.

2 Thessalonians 2:10-12
and with every wicked deception directed against those who are perishing, because they refused the love of the truth that would have saved them. / For this reason God will send them a powerful delusion so that they believe the lie, / in order that judgment may come upon all who have disbelieved the truth and delighted in wickedness.

John 3:19-20
And this is the verdict: The Light has come into the world, but men loved the darkness rather than the Light because their deeds were evil. / Everyone who does evil hates the Light, and does not come into the Light for fear that his deeds will be exposed.

Acts 28:26-27
‘Go to this people and say, “You will be ever hearing but never understanding; you will be ever seeing but never perceiving.” / For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Isaiah 44:18
They do not comprehend or discern, for He has shut their eyes so they cannot see and closed their minds so they cannot understand.

Jeremiah 5:21
“Hear this, O foolish and senseless people, who have eyes but do not see, who have ears but do not hear.