Mark 4:12
So that seeing they see, and do not perceive, and hearing they hear, and do not understand; lest at any time they should be converted, and their sins should 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 others in parables, so that seeing they do not see, and hearing they do not understand.
Matthew 13:14-15
And in them is fulfilled the prophecy of Isaiah who saith, Hearing ye will hear, but in no wise understand, and seeing ye will see, but in no wise perceive.
Romans 11:8
According as it is written, God hath given them a spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.
John 12:40
He hath blinded their eyes, and hardened their hearts, that they might not see with their eyes, and understand with their heart, and be converted, that I might heal them.
Acts 28:26-27
Saying, Go to this people and say, Hearing ye shall hear, and shall not understand, and seeing ye shall see, and shall not perceive.