Isaiah 6:9

And he said, Go, and say to this people, You will go on hearing, but learning nothing; you will go on seeing, but without getting wiser.

Mark 4:12

So that seeing they may see, and it will not be clear to them; and hearing it, they will not get the sense; for fear that they may be turned again to me and have forgiveness.

Luke 8:10

And he said, To you is given knowledge of the secrets of the kingdom of God; but to the others, they are given in stories, so that seeing, they may not see, and though they give hearing, the sense will not be clear to them.

Matthew 13:14-15

And for them the words of Isaiah have come true, Though you give ear, you will not get knowledge; and seeing, you will see, but the sense will not be clear to you:

Romans 11:8

As it was said in the holy Writings, God gave them a spirit of sleep, eyes which might not see, and ears which have no hearing, to this day.

Isaiah 43:8

Send out the blind people who have eyes, and those who have ears, but they are shut.

John 12:40

He has made their eyes blind, and their hearts hard; for fear that they might see with their eyes and get knowledge with their hearts, and be changed, and I might make them well.

Acts 28:26-27

Go to this people and say, Though you give ear, you will not get knowledge; and seeing, you will see, but the sense will not be clear to you:

Exodus 32:7-10

And the Lord said to Moses, Go down quickly; for your people, whom you took out of the land of Egypt, are turned to evil ways;

Isaiah 29:13

And the Lord said, because this people come near to me with their mouths, and give honour to me with their lips, but their heart is far from me, and their fear of me is false, a rule given them by the teaching of men;

Isaiah 30:8-11

Now go, put it in writing before them on a board, and make a record of it in a book, so that it may be for the future, a witness for all time to come.

Isaiah 44:18-20

They have no knowledge or wisdom; for he has put a veil over their eyes, so that they may not see; and on their hearts, so that they may not give attention.

Jeremiah 15:1-2

Then the Lord said to me, Even if Moses and Samuel came before me, I would have no desire for this people: send them away from before me, and let them go.

Hosea 1:9

And the Lord said, Give him the name Lo-ammi; for you 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
Send out the blind people who have eyes, and those who have ears, but they are shut.
Isaiah 44:18
They have no knowledge or wisdom; for he has put a veil over their eyes, so that they may not see; and on their hearts, so that they may not give attention.
Matthew 13:14
And for them the words of Isaiah have come true, Though you give ear, you will not get knowledge; and seeing, you will see, but the sense will not be clear to you:
Mark 4:12
So that seeing they may see, and it will not be clear to them; and hearing it, they will not get the sense; for fear that they may be turned again to me and have forgiveness.
Luke 8:10
And he said, To you is given knowledge of the secrets of the kingdom of God; but to the others, they are given in stories, so that seeing, they may not see, and though they give hearing, the sense will not be clear to them.
John 12:40
He has made their eyes blind, and their hearts hard; for fear that they might see with their eyes and get knowledge with their hearts, and be changed, and I might make them well.
Acts 28:26
Go to this people and say, Though you give ear, you will not get knowledge; and seeing, you will see, but the sense will not be clear to you:
Romans 11:8
As it was said in the holy Writings, God gave them a spirit of sleep, eyes which might not see, and ears which have no hearing, to this day.

General references

Exodus 10:20
But the Lord made Pharaoh's heart hard, and he did not let the children of Israel go.
Deuteronomy 28:28
He will make your minds diseased, and your eyes blind, and your hearts wasted with fear:
Deuteronomy 29:4
But even to this day the Lord has not given you a mind open to knowledge, or seeing eyes or hearing ears.
Isaiah 43:8
Send out the blind people who have eyes, and those who have ears, but they are shut.
John 8:27
They did not see that his words were about the Father.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain