Acts 28:26
saying, Go to this people, and say, "In hearing ye shall hear, and shall not understand; and seeing ye shall see, yet in nowise perceive.
Matthew 13:14-15
And in them is fulfilled the prophecy of Isaiah, which saith, With the hearing ye shall hear, and not understand; and seeing ye shall see, and in no wise perceive:
Mark 4:12
That seeing they may see, yet not perceive; and hearing may hear, yet not understand; lest at any time they should be converted, and their sins be forgiven them.
Luke 8:10
And he said, To you it is given to know the mysteries of the kingdom of God; but to the rest in parables: that seeing they may not perceive, and hearing may not comprehend.
Mark 8:17-18
And Jesus knowing it said unto them, Why reason ye together, because ye have no loaves? Do ye not yet consider, nor understand? Have ye your heart yet hardened?
Luke 24:25
And he said unto them, O ye void of understanding, and slow of heart to believe all that the prophets have spoken!
Luke 24:45
Then opened he thoroughly their understanding, that they should understand the scriptures,
John 12:38-40
that the saying of Isaiah the prophet might be fulfilled, which he spake, "Lord, who hath believed our report? and to whom hath the arm of the Lord been revealed?"
Romans 11:8-10
as it is written, "God hath given them the spirit of slumber, eyes that they should not see, and ears that they should not hear; unto this present day."
2 Corinthians 4:4-6
among whom the god of this world hath blinded the minds of the unbelievers, that the light of the gospel of the glory of Christ, who is the image of God, should not dart its bright beams upon them.