Jeremiah 5:21
“Hear this, O foolish and senseless people, who have eyes but do not see, who have ears but do not hear.

Isaiah 6:9-10
And He replied: “Go and tell this people, ‘Be ever hearing, but never understanding; be ever seeing, but never perceiving.’ / Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”

Matthew 13:14-15
In them the prophecy of Isaiah is fulfilled: ‘You will be ever hearing but never understanding; you will be ever seeing but never perceiving. / For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Mark 4:12
so that, ‘they may be ever seeing but never perceiving, and ever hearing but never understanding; otherwise they might turn and be forgiven.’”

Luke 8:10
He replied, “The knowledge of the mysteries of the kingdom of God has been given to you, but to others I speak in parables, so that, ‘though seeing, they may not see; though hearing, they may not understand.’

Acts 28:26-27
‘Go to this people and say, “You will be ever hearing but never understanding; you will be ever seeing but never perceiving.” / For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’

Romans 11:8
as it is written: “God gave them a spirit of stupor, eyes that could not see, and ears that could not hear, to this very day.”

John 12:40
“He has blinded their eyes and hardened their hearts, so that they cannot see with their eyes, and understand with their hearts, and turn, and I would heal them.”

2 Corinthians 3:14-15
But their minds were closed. For to this day the same veil remains at the reading of the old covenant. It has not been lifted, because only in Christ can it be removed. / And even to this day when Moses is read, a veil covers their hearts.

Hebrews 5:11
We have much to say about this, but it is hard to explain, because you are dull of hearing.

Isaiah 42:18-20
Listen, you deaf ones; look, you blind ones, that you may see! / Who is blind but My servant, or deaf like the messenger I am sending? Who is blind like My covenant partner, or blind like the servant of the LORD? / Though seeing many things, you do not keep watch. Though your ears are open, you do not hear.”

Jeremiah 6:10
To whom can I give this warning? Who will listen to me? Look, their ears are closed, so they cannot hear. See, the word of the LORD has become offensive to them; they find no pleasure in it.

Ezekiel 2:3-5
“Son of man,” He said to me, “I am sending you to the Israelites, to a rebellious nation that has rebelled against Me. To this very day they and their fathers have rebelled against Me. / They are obstinate and stubborn children. I am sending you to them, and you are to say to them, ‘This is what the Lord GOD says.’ / And whether they listen or refuse to listen—for they are a rebellious house—they will know that a prophet has been among them.

Ezekiel 3:6-7
not to the many peoples of unfamiliar speech and difficult language whose words you cannot understand. Surely if I had sent you to them, they would have listened to you. / But the house of Israel will be unwilling to listen to you, since they are unwilling to listen to Me. For the whole house of Israel is hard-headed and hard-hearted.

Ezekiel 33:31-33
So My people come to you as usual, sit before you, and hear your words; but they do not put them into practice. Although they express love with their mouths, their hearts pursue dishonest gain. / Indeed, you are to them like a singer of love songs with a beautiful voice, who skillfully plays an instrument. They hear your words but do not put them into practice. / So when it comes to pass—and surely it will come—then they will know that a prophet has been among them.”