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.

Isaiah 6:10

Make the hearts of this people fat, and let their ears be stopped, and their eyes shut; for fear that they may see with their eyes, and be hearing with their ears, and their heart may become wise, and they may be turned to me and made well.

Matthew 13:13-15

For this reason I put things into the form of stories; because they see without seeing, and give ear without hearing, and the sense is not clear to them.

Joshua 11:20

For the Lord made them strong in heart to go to war against Israel, so that he might give them up to the curse without mercy, and that destruction might come on them, as the Lord had given orders to Moses.

Isaiah 29:10

For the Lord has sent on you a spirit of deep sleep; and by him your eyes, the prophets, are shut, and your heads, the seers, are covered.

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.

Exodus 4:21

And the Lord said to Moses, When you go back to Egypt, see that you do before Pharaoh all the wonders which I have given you power to do: but I will make his heart hard and he will not let the people go.

Exodus 7:3

And I will make Pharaoh's heart hard, and my signs and wonders will be increased in the land of Egypt.

Exodus 7:13

But Pharaoh's heart was made hard, and he did not give ear to them, as the Lord had said.

Exodus 14:4

And I will make Pharaoh's heart hard, and he will come after them and I will be honoured over Pharaoh and all his army, so that the Egyptians may see that I am the Lord. And they did so.

Exodus 14:8

And the Lord made the heart of Pharaoh hard, and he went after the children of Israel: for the children of Israel had gone out without fear.

Exodus 14:17

And I will make the heart of the Egyptians hard, and they will go in after them: and I will be honoured over Pharaoh and over his army, his war-carriages, and his horsemen.

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.

1 Kings 22:20

And the Lord said, How may Ahab be tricked into going up to Ramoth-gilead to his death? And one said one thing and one another.

Psalm 6:2

Have mercy on me, O Lord, for I am wasted away: make me well, for even my bones are troubled.

Psalm 41:4

I said, Lord, have mercy on me; make my soul well, because my faith is in you.

Psalm 135:10-18

He overcame great nations, and put strong kings to death;

Psalm 147:3

He makes the broken-hearted well, and puts oil on their wounds.

Isaiah 26:11

Lord, your hand is lifted up, but they do not see: let them see ... yes, your haters will be burned up in the fire.

Isaiah 42:19-20

Who is blind, but my servant? who has his ears stopped, but he whom I send? who is blind as my true one, or who has his ears shut like the Lord's servant?

Isaiah 53:5

But it was for our sins he was wounded, and for our evil doings he was crushed: he took the punishment by which we have peace, and by his wounds we are made well.

Isaiah 57:18-19

I have seen his ways, and I will make him well: I will give him rest, comforting him and his people who are sad.

Jeremiah 3:22

Come back, you children who have been turned away, and I will take away your desire for wandering. See, we have come to you, for you are the Lord our God.

Jeremiah 5:21

Give ear now to this, O foolish people without sense; who have eyes but see nothing, and ears without the power of hearing:

Ezekiel 12:2

Son of man, you are living among an uncontrolled people, who have eyes to see but see not, and ears for hearing but they do not give ear; for they are an uncontrolled people.

Ezekiel 14:9

And if the prophet, tricked by deceit, says anything, it is I the Lord by whom he has been tricked, and I will put out my hand against him, and he will be cut off from among my people Israel.

Hosea 6:1

Come, let us go back to the Lord; for he has given us wounds and he will make us well; he has given blows and he will give help.

Hosea 14:4

I will put right their errors; freely will my love be given to them, for my wrath is turned away from him.

Matthew 15:14

Let them be: they are blind guides. And if a blind man is guiding a blind man, the two will go falling into a hole together.

Mark 6:52

For it was not clear to them about the bread; but their hearts were hard.

Mark 8:17-18

And Jesus, hearing it, said to them, Why are you reasoning among yourselves because you have no bread? do you still not see, and is it still not clear to you? are your hearts so hard?

Luke 4:18

The Spirit of the Lord is on me, because I am marked out by him to give good news to the poor; he has sent me to make well those who are broken-hearted; to say that the prisoners will be let go, and the blind will see, and to make the wounded free from their chains,

John 9:39

And Jesus said, I came into this world to be a judge, so that those who do not see may see, and those who see may become blind.

Acts 3:19

So then, let your hearts be changed and be turned to God, so that your sins may be completely taken away, and times of blessing may come from the Lord;

Acts 15:3

So they, being sent on their way by the church, went through Phoenicia and Samaria, giving news of the salvation of the Gentiles, to the great joy of all the brothers.

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 9:18

So then, at his pleasure he has mercy on a man, and at his pleasure he makes the heart hard.

Romans 11:7-11

What then? That which Israel was searching for he did not get, but those of the selection got it and the rest were made hard.

James 5:19-20

My brothers, if one of you has gone out of the way of the true faith and another has made him see his error,

Treasury of Scripture Knowledge

Summary

He hath 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.

Bible References

Hath

John 9:39
And Jesus said, I came into this world to be a judge, so that those who do not see may see, and those who see may become blind.
1 Kings 22:20
And the Lord said, How may Ahab be tricked into going up to Ramoth-gilead to his death? And one said one thing and one another.
Isaiah 29:10
For the Lord has sent on you a spirit of deep sleep; and by him your eyes, the prophets, are shut, and your heads, the seers, are covered.
Ezekiel 14:9
And if the prophet, tricked by deceit, says anything, it is I the Lord by whom he has been tricked, and I will put out my hand against him, and he will be cut off from among my people Israel.
Matthew 13:13
For this reason I put things into the form of stories; because they see without seeing, and give ear without hearing, and the sense is not clear to them.
Matthew 15:14
Let them be: they are blind guides. And if a blind man is guiding a blind man, the two will go falling into a hole together.
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.
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.

That they

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.
Psalm 135:10
He overcame great nations, and put strong kings to death;
Isaiah 26:11
Lord, your hand is lifted up, but they do not see: let them see ... yes, your haters will be burned up in the fire.
Isaiah 42:19
Who is blind, but my servant? who has his ears stopped, but he whom I send? who is blind as my true one, or who has his ears shut like the Lord's servant?
Jeremiah 5:21
Give ear now to this, O foolish people without sense; who have eyes but see nothing, and ears without the power of hearing:
Ezekiel 12:2
Son of man, you are living among an uncontrolled people, who have eyes to see but see not, and ears for hearing but they do not give ear; for they are an uncontrolled people.
Mark 8:17
And Jesus, hearing it, said to them, Why are you reasoning among yourselves because you have no bread? do you still not see, and is it still not clear to you? are your hearts so hard?

And be

Acts 3:19
So then, let your hearts be changed and be turned to God, so that your sins may be completely taken away, and times of blessing may come from the Lord;
Acts 15:3
So they, being sent on their way by the church, went through Phoenicia and Samaria, giving news of the salvation of the Gentiles, to the great joy of all the brothers.
James 5:19
My brothers, if one of you has gone out of the way of the true faith and another has made him see his error,

Heal

Psalm 6:2
Have mercy on me, O Lord, for I am wasted away: make me well, for even my bones are troubled.
Psalm 41:4
I said, Lord, have mercy on me; make my soul well, because my faith is in you.
Psalm 147:3
He makes the broken-hearted well, and puts oil on their wounds.
Isaiah 53:5
But it was for our sins he was wounded, and for our evil doings he was crushed: he took the punishment by which we have peace, and by his wounds we are made well.
Isaiah 57:18
I have seen his ways, and I will make him well: I will give him rest, comforting him and his people who are sad.
Jeremiah 3:22
Come back, you children who have been turned away, and I will take away your desire for wandering. See, we have come to you, for you are the Lord our God.
Hosea 6:1
Come, let us go back to the Lord; for he has given us wounds and he will make us well; he has given blows and he will give help.
Hosea 14:4
I will put right their errors; freely will my love be given to them, for my wrath is turned away from him.
Luke 4:18
The Spirit of the Lord is on me, because I am marked out by him to give good news to the poor; he has sent me to make well those who are broken-hearted; to say that the prisoners will be let go, and the blind will see, and to make the wounded free from their chains,

General references

Exodus 10:20
But the Lord made Pharaoh's heart hard, and he did not let the children of Israel go.
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.
John 1:5
And the light goes on shining in the dark; it is not overcome by the dark.
John 9:18
Now the Jews had no belief in the statement that he had been blind and was now able to see, till they sent for the father and mother of the man whose eyes had been made open,
John 10:37
If I am not doing the works of my Father, do not have belief in me;

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