Acts 28:26

"Go to the people and tell them, You will hear and hear, and by no means understand; And will look, and by no means see.

Matthew 13:14-15

And in them is being fulfilled that prophecy of Isaiah which says. "Hearing you will hear and not understand; Seeing you will see and not perceive;

Mark 4:12

so that, "for all their looking they may not see, and for all their hearing, they may not understand, lest perchance they should turn and be pardoned.

Luke 8:10

He answered. "To you it is given to understand the mysteries of the kingdom of God; But all others are taught in parables so that seeing they shall not see, and hearing they shall not hear.

Mark 8:17-18

"Why are you arguing together because you have no bread? Do you not yet perceive and understand?

Luke 24:25

"O foolish men," said Jesus, "slow of heart to believe all that the prophets have spoken!

Luke 24:45

Then he opened their minds to understand the Scriptures,

John 12:38-40

So the words spoken by Isaiah, the prophet, were fulfilled. Lord, who hath believed our message, And to whom hath the Arm of the Lord been revealed?

Romans 11:8-10

According as it is written, God has given them a spirit of slumber, Eyes that they should not see, Ears that they should not hear, unto this day.

2 Corinthians 4:4-6

Among them the god of this age has blinded the understanding of the unbelieving so that the sunshine of the gospel of God, should not dawn upon them.

Treasury of Scripture Knowledge

Summary

Saying, Go unto this people, and say, Hearing ye shall hear, and shall not understand; and seeing ye shall see, and not perceive:

Bible References

Hearing

Mark 8:17
"Why are you arguing together because you have no bread? Do you not yet perceive and understand?
Luke 24:25
"O foolish men," said Jesus, "slow of heart to believe all that the prophets have spoken!
2 Corinthians 4:4
Among them the god of this age has blinded the understanding of the unbelieving so that the sunshine of the gospel of God, should not dawn upon them.