Mark 8:18

Having eyes, do ye see not? and, having ears, do ye hear not? And, do ye not remember?

Mark 4:12

that, seeing, they may see, and not perceive; and, hearing, they may hear, and not understand; lest haply they should turn, and be forgiven."

Matthew 13:14-15

And to them is fulfilled the prophecy of Isaiah, which says, 'With hearing ye will hear, and will not understand; and, seeing, ye will see, and will not perceive;

John 12:40

"He hath blinded their eyes, and He hardened their heart, lest they should see with their eyes, and understand with their heart, and turn, and I should heal them."

Acts 28:26-27

saying, 'Go your way to this people, and say, With hearing ye shall hear, but in no wise understand; and, looking, ye shall look, and in no wise see;

Romans 11:8

as it has been written, "God gave them a spirit of stupor, eyes that they should not see, and ears that they should not hear, unto this day."

2 Peter 1:12

Wherefore, I shall be always ready to remind you of these things, though ye know them, and have become confirmed in the present truth.

Treasury of Scripture Knowledge

Summary

Having eyes, see ye not? and having ears, hear ye not? and do ye not remember?

Bible References

See

Mark 4:12
that, seeing, they may see, and not perceive; and, hearing, they may hear, and not understand; lest haply they should turn, and be forgiven."
Matthew 13:14
And to them is fulfilled the prophecy of Isaiah, which says, 'With hearing ye will hear, and will not understand; and, seeing, ye will see, and will not perceive;
John 12:40
"He hath blinded their eyes, and He hardened their heart, lest they should see with their eyes, and understand with their heart, and turn, and I should heal them."
Acts 28:26
saying, 'Go your way to this people, and say, With hearing ye shall hear, but in no wise understand; and, looking, ye shall look, and in no wise see;
Romans 11:8
as it has been written, "God gave them a spirit of stupor, eyes that they should not see, and ears that they should not hear, unto this day."

Do

2 Peter 1:12
Wherefore, I shall be always ready to remind you of these things, though ye know them, and have become confirmed in the present truth.

General references

Matthew 13:13
On this account, I speak to them in parables; because, seeing, they see not; and, hearing, they hear not, nor understand.
Matthew 15:16
And He said, "Are ye also even yet without understanding?
Matthew 16:10
Nor the seven loaves of the four thousand, and how many baskets ye took up?
Luke 9:45
But they did not understand this saying; and it was veiled from them, that they might not perceive it; and they were afraid to ask Him concerning this saying.