Matthew 12:34

Ye broods of vipers, how can ye speak good things, yourselves being wicked? for out of the abundance of the heart the mouth speaketh.

Matthew 13:14-15

And in them is fulfilled the prophecy of Isaiah, which saith, With the hearing ye shall hear, and not understand; and seeing ye shall see, and in no wise perceive:

John 5:44

How can ye believe, who receiving honour one from another, seek not the honour which cometh from God alone?

John 8:43

Wherefore do ye not understand my speech? because ye cannot hear my word.

John 12:39-40

For this reason they could not believe, because Isaiah had said again;

Acts 14:16

who in the past generations hath suffered all nations to walk in their own ways.

Romans 1:21-23

because though they knew [there was] a God, they glorified him not as God, nor gave him thanks, but became triflers in their disputations, and their stupid heart was darkened.

Romans 1:28

And since they thought not fit to hold the Deity in acknowledgment, God abandoned them to a reprobate mind, to practise deeds unbecoming;

Romans 11:8-10

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

2 Corinthians 4:3-4

And if now our gospel be hid, it is hid from those who are lost:

2 Thessalonians 2:9-12

whose appearing is known by fanatical energy, displayed in all power, and signs, and lying miracles,

2 Peter 2:14

having eyes full of adultery, and insatiable of sin; ensnaring souls of no stability; having a heart practised in all the wiles of covetousness; children for a curse:

Treasury of Scripture Knowledge

Summary

They have not known nor understood: for he hath shut their eyes, that they cannot see; and their hearts, that they cannot understand.

Have not

General references

Bible References

Have not

Romans 1:21
because though they knew [there was] a God, they glorified him not as God, nor gave him thanks, but became triflers in their disputations, and their stupid heart was darkened.

For he hath

Matthew 13:14
And in them is fulfilled the prophecy of Isaiah, which saith, With the hearing ye shall hear, and not understand; and seeing ye shall see, and in no wise perceive:
Acts 14:16
who in the past generations hath suffered all nations to walk in their own ways.
Romans 1:28
And since they thought not fit to hold the Deity in acknowledgment, God abandoned them to a reprobate mind, to practise deeds unbecoming;
Romans 11:8
as it is written, "God hath given them the spirit of slumber, eyes that they should not see, and ears that they should not hear; unto this present day."
2 Corinthians 4:3
And if now our gospel be hid, it is hid from those who are lost:
2 Thessalonians 2:9
whose appearing is known by fanatical energy, displayed in all power, and signs, and lying miracles,

Cannot

Matthew 12:34
Ye broods of vipers, how can ye speak good things, yourselves being wicked? for out of the abundance of the heart the mouth speaketh.
John 5:44
How can ye believe, who receiving honour one from another, seek not the honour which cometh from God alone?
John 8:43
Wherefore do ye not understand my speech? because ye cannot hear my word.
John 12:39
For this reason they could not believe, because Isaiah had said again;
2 Peter 2:14
having eyes full of adultery, and insatiable of sin; ensnaring souls of no stability; having a heart practised in all the wiles of covetousness; children for a curse:

General references

Matthew 13:13
Therefore I speak to them in parables: that seeing, they may not see; and hearing, they may not hear nor understand.
Matthew 24:39
and they knew it not till the deluge came, and swept them all away; such also shall the coming of the Son of man be.