Matthew 13:13-14
Therefore, I am speaking to them with parables because [although] they can see, they [really] do not perceive, and [although] they can hear, they [really] do not comprehend, and so they [utterly] fail to understand [what I am trying to get across].
Mark 4:12
This is so that even though they see, they will see and yet not perceive. And even though they hear, they will hear and yet not understand. For if they did, they would turn [back to God] again and receive forgiveness."
Luke 8:10
And He said to them, "You [disciples] are being given an understanding of the secrets of the kingdom of God, but the rest of the people [are being told] in parables, so that [even though they appear to be] seeing, they will not [actually] see; and [even though they seem to] hear, they will not understand.
John 9:39-41
And Jesus said, "I came to this world to judge [it], so that people who can not see [spiritually] will [be able to] see; and those who [think they can] see [spiritually] will become blind."
John 12:40
"God has blinded their eyes [of understanding] and closed their minds. If He had not done so, they would [be able to] see with their eyes and understand with their minds and turn [to God] so He could heal them [spiritually]."
Mark 8:17-18
Jesus, being aware of what they were thinking, said, "Why are you reasoning about not having any bread? Have you not yet perceived or understood? Have your hearts become insensitive?
Acts 7:51-52
You people are unbending and unrepentant in your hearts and [unwilling to listen with] your ears. You are always resisting [the desires of] the Holy Spirit just like your forefathers did.
Acts 28:26-27
saying, [Isa. 6:9-10], 'Go to these people and say, you will hear all right, but you will not understand [what you hear]. You will see all right, but you will not perceive [what you see].
Romans 11:7-8
What then? [Just this]: The very thing that the Israelites are looking for [i.e., a right relationship with God], they have not found. But God's selected ones obtained [this right relationship with Him] and the rest [of the Israelites] were made insensitive to God's call,
2 Corinthians 3:14
But the minds of the Israelites became dull for, to this very day, the same veil remains on them [i.e., figuratively] when the Old Agreement [Scriptures] are read. It is not being revealed to them that the Old Agreement is being abolished by Christ [i.e., by His death on the cross. See Col. 2:14].
2 Corinthians 4:3-4
For even if our Gospel message is veiled, it is veiled [only] from those who are lost.
Ephesians 4:18
Their understanding [of spiritual things] is darkened and excluded from the [spiritual] life that God gives, because of the ignorance in their minds and the stubbornness in their hearts.
2 Thessalonians 2:10-11
and all kinds of wicked deception toward those people who are perishing [spiritually], because they refused to love the truth so they could be saved.