Matthew 13:14

In them is fulfilled the prophecy of Isaiah which says: 'Hearing you will hear and shall not understand; and seeing you will see and not perceive.

Mark 4:12

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

Luke 8:10

he said, "To you it has been given to know the secrets of the kingdom of God; but to others it is given in parables, so that 'Seeing they may not see, and hearing they may not understand.'

John 12:39-40

Therefore they could not believe, because Isaiah said again:

Acts 28:25-27

When they disagreed among themselves, they began to leave, after Paul had made one final statement: "The Holy Spirit spoke the truth to your fathers through Isaiah the prophet:

Romans 11:8-10

as it is written: "God gave them a spirit of stupor, eyes that they should not see and ears that they should not hear, down to this very day."

2 Corinthians 3:14

But their minds were hardened; for to this day, when they read the old covenant, the same veil remains unlifted, because only in Christ is it removed.

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 may see but not perceive, and hearing may hear but not understand; lest they should turn again, and be forgiven.'"
Luke 8:10
he said, "To you it has been given to know the secrets of the kingdom of God; but to others it is given in parables, so that 'Seeing they may not see, and hearing they may not understand.'
John 12:39
Therefore they could not believe, because Isaiah said again:
Acts 28:25
When they disagreed among themselves, they began to leave, after Paul had made one final statement: "The Holy Spirit spoke the truth to your fathers through Isaiah the prophet:
Romans 11:8
as it is written: "God gave them a spirit of stupor, eyes that they should not see and ears that they should not hear, down to this very day."
2 Corinthians 3:14
But their minds were hardened; for to this day, when they read the old covenant, the same veil remains unlifted, because only in Christ is it removed.

General references

Matthew 24:39
and they did not know until the flood came and took them all away, so also will the coming of the Son of Man be.