Isaiah 6:9

Then he said, Go and tell this people, Hear indeed, but do not understand; and see indeed, but do not perceive.

Mark 4:12

that seeing they may see and not perceive, and hearing they may hear and not understand, lest at any time they should be converted, and their sins should be forgiven them.

Luke 8:10

And he said, Unto you it is given to know the mysteries of the kingdom of God, but to the others in parables that seeing they might not see and hearing they might not understand.

Matthew 13:14-15

And in them is fulfilled the prophecy of Isaiah, which says, By hearing ye shall hear and shall not understand, and seeing ye shall see and shall not perceive;

Romans 11:8

(according as it is written, God has given them the spirit of anguish, eyes with which they do not see and ears with which they do not hear) unto this day.

Isaiah 43:8

Bring forth the people that is blind that have eyes and the deaf that have ears.

John 12:40

He has blinded their eyes and hardened their heart, that they should not see with their eyes nor understand with their heart and be converted, and I should heal them.

Acts 28:26-27

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

Exodus 32:7-10

Then the LORD said unto Moses, Go, descend; for thy people, which thou didst bring out of the land of Egypt, have corrupted themselves:

Isaiah 29:13

Therefore the Lord said, Forasmuch as this people sacrifice unto me and honour me with their lips, but have removed their heart far from me, and their worship with which they honour me was taught by the commandment of men:

Isaiah 30:8-11

Now go, write this vision before them on a tablet and note it in a book that it may remain unto the last day, for ever, unto all ages.

Isaiah 44:18-20

They did not know nor understand; for he has anointed their eyes that they not see and their hearts that they not understand.

Jeremiah 15:1-2

Then the LORD said unto me, Though Moses and Samuel stood before me, yet my will would not be toward this people: cast them out of my sight, and let them go forth.

Hosea 1:9

Then said God, Call his name Loammi: for ye are not my people, and I will not be your God.

Treasury of Scripture Knowledge

Summary

And he said, Go, and tell this people, Hear ye indeed, but understand not; and see ye indeed, but perceive not.

Bible References

Hear ye

Isaiah 43:8
Bring forth the people that is blind that have eyes and the deaf that have ears.
Isaiah 44:18
They did not know nor understand; for he has anointed their eyes that they not see and their hearts that they not understand.
Matthew 13:14
And in them is fulfilled the prophecy of Isaiah, which says, By hearing ye shall hear and shall not understand, and seeing ye shall see and shall not perceive;
Mark 4:12
that seeing they may see and not perceive, and hearing they may hear and not understand, lest at any time they should be converted, and their sins should be forgiven them.
Luke 8:10
And he said, Unto you it is given to know the mysteries of the kingdom of God, but to the others in parables that seeing they might not see and hearing they might not understand.
John 12:40
He has blinded their eyes and hardened their heart, that they should not see with their eyes nor understand with their heart and be converted, and I should heal them.
Acts 28:26
saying, Go unto this people, and say, Hearing ye shall hear and shall not understand; and seeing ye shall see and not perceive;
Romans 11:8
(according as it is written, God has given them the spirit of anguish, eyes with which they do not see and ears with which they do not hear) unto this day.

General references

Exodus 10:20
But the LORD hardened Pharaoh's heart, so that he would not let the sons of Israel go.
Deuteronomy 28:28
The LORD shall smite thee with madness and blindness and astonishment of heart.
Deuteronomy 29:4
Yet the LORD has not given you a heart to perceive and eyes to see and ears to hear until today.
Isaiah 43:8
Bring forth the people that is blind that have eyes and the deaf that have ears.
John 8:27
But they did not understand that he spoke to them of the Father.