Acts 28:26
saying, Go to this people and say, Ye shall hear by the hearing of the ear, and not understand; and in seeing ye shall see, and not perceive: for the heart of this people is stupified,
Matthew 13:14-15
And in them is fulfilled the prophecy of Isaiah, which saith, Ye shall hear by the hearing of the ear, and not understand; and in seeing ye shall see, and not perceive: for the heart of this people is grown stupid,
Mark 4:12
that in seeing they may see and not perceive, and in hearing they may hear and not understand, least they should be converted, and their sins be forgiven them.
Luke 8:10
And He said, To you it is granted to know the mysteries of the kingdom of God: but I speak to others in parables, that in seeing they may not see, and hearing they may not understand.
Mark 8:17-18
And Jesus knowing it saith unto them, What are ye reasoning about? because ye have no bread? Do ye not yet discern nor understand? have ye your heart still hardened?
Luke 24:25
And He said unto them, O people void of understanding and slow of heart to believe all that the prophets have spoken.
Luke 24:45
Then He opened their mind, to understand the scriptures:
John 12:38-40
so that the word of Esaias the prophet was fulfilled, which he spake, saying, Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed?
Romans 11:8-10
(according as it is written, God hath given them a spirit of slumber, that their eyes could not see and their ears could not hear,) even unto this day.
2 Corinthians 4:4-6
among whom the god of this world hath blinded the minds of the unbelieving, so that the light of the glorious gospel of Christ, who is the image of God, doth not shine unto them: