Matthew 13:14

And in them is fulfilled the prophecy of Isaiah who saith, Hearing ye will hear, but in no wise understand, and seeing ye will see, but in no wise perceive.

Mark 4:12

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

Luke 8:10

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

John 12:39-40

Therefore they could not believe, according to what Isaiah said again.

Acts 28:25-27

And not agreeing with each other, they brake up the assembly, after Paul had spoken one word, Well spake the Holy Ghost by the prophet Isaiah to your fathers,

Romans 11:8-10

According as it is written, God hath given them a spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.

2 Corinthians 3:14

But their understandings were blinded: and until this day the same veil remaineth unremoved on the reading of the old testament, which is taken away in Christ.

Treasury of Scripture Knowledge

Summary

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

General references

Bible References

The prophecy

Mark 4:12
So that seeing they see, and do not perceive, and hearing they hear, and do not understand; lest at any time they should be converted, and their sins should be forgiven them.
Luke 8:10
And he said, To you it is given to know the mysteries of the kingdom of God, but to others in parables, so that seeing they do not see, and hearing they do not understand.
John 12:39
Therefore they could not believe, according to what Isaiah said again.
Acts 28:25
And not agreeing with each other, they brake up the assembly, after Paul had spoken one word, Well spake the Holy Ghost by the prophet Isaiah to your fathers,
Romans 11:8
According as it is written, God hath given them a spirit of slumber, eyes that they should not see, and ears that they should not hear, unto this day.
2 Corinthians 3:14
But their understandings were blinded: and until this day the same veil remaineth unremoved on the reading of the old testament, which is taken away in Christ.

General references

Matthew 24:39
And knew not, till the flood came and took them all away, so shall also the coming of the Son of man be.