2 Corinthians 4:4
For the god of this world [i.e., Satan] has blinded the minds of the unbelievers, so that they would not see the light of the Gospel of the splendor of Christ, who is the image of God.
Matthew 13:14-15
So, the prophecy of Isaiah is being fulfilled by them, which says, [Isa. 6:9f] '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].
Matthew 15:14-16
[So], let these Pharisees alone; they are blind leaders. And if a blind person leads a blind person, both of them will fall into a ditch."
Matthew 23:16-24
"It is too bad for you blind leaders who say that whoever takes an oath 'by the Temple,' it does not [really] mean anything, but whoever takes an oath 'by the gold of the Temple,' he is obligated to [fulfill] the oath.
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?
John 7:47-49
The Pharisees replied, "Are you being led astray, too?
John 9:39
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 9:41
Jesus said to them, "If you were [really] blind [i.e., unable to see spiritually], you would not be guilty of sin. But since you claim, 'We can see [fine],' you remain guilty of sin."
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]."
Romans 2:17-23
But if you call yourselves "Jews," and [claim to] rely on the law of Moses, and brag about [belonging to] God;
Romans 11:7-10
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,
Romans 11:25
For I want you to know this secret, brothers, so you will not become conceited: Part of the Israelites have become [spiritually] insensitive [to God], [and will remain that way] until the fullness of the Gentiles occurs. [Note: As with verse 12, concerning the Jews, "fullness" here may mean either a large or the complete number of Gentiles who will be saved].
2 Corinthians 3:14-15
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].