Matthew 13:15

For this nation's mind has grown dull, And they hear faintly with their ears, And they have shut their eyes, So as never to see with their eyes, And hear with their ears, And understand with their minds, and turn back, And let me cure them!'

Hebrews 5:11

I have much to say to you about this, but it is difficult to make it clear to you, because you have become so slow of apprehension.

John 8:43-44

Why is it that you do not understand what I say? It is because you cannot bear to listen to my message.

2 Timothy 4:4

and they will turn from listening to the truth and wander off after fictions.

Mark 4:12

so that " 'They may look and look and yet not see, And listen and listen and yet not understand, Lest possibly they should turn and be forgiven.' ",

Acts 3:19

So repent and turn to God, to have your sins wiped out, and happier times will come from the presence of the Lord,

Acts 7:57

But they uttered a great shout and stopped their ears, and they rushed upon him all together,

2 Thessalonians 2:10-11

and full of wicked deception for men who are going to destruction, because they refused to love the truth and be saved.

2 Timothy 2:25-26

correcting his opponents with gentleness; for God may possibly let them repent and acknowledge the truth,

Hebrews 6:4-6

For it is impossible to arouse people to a fresh repentance when they have once for all come into the light and had a taste of the gift from heaven, and shared in the holy Spirit

Revelation 22:2

and ran through the middle of the principal street of the city. On both sides of the river grew the tree of life. It bore twelve kinds of fruit, yielding a different kind each month, and its leaves were a cure for the heathen.

Treasury of Scripture Knowledge

Summary

For this people's heart is waxed gross, and their ears are dull of hearing, and their eyes they have closed; lest at any time they should see with their eyes, and hear with their ears, and should understand with their heart, and should be converted, and I should heal them.

General references

Bible References

Ears

John 8:43
Why is it that you do not understand what I say? It is because you cannot bear to listen to my message.
Acts 7:57
But they uttered a great shout and stopped their ears, and they rushed upon him all together,
2 Timothy 4:4
and they will turn from listening to the truth and wander off after fictions.
Hebrews 5:11
I have much to say to you about this, but it is difficult to make it clear to you, because you have become so slow of apprehension.

And should be

Acts 3:19
So repent and turn to God, to have your sins wiped out, and happier times will come from the presence of the Lord,
2 Timothy 2:25
correcting his opponents with gentleness; for God may possibly let them repent and acknowledge the truth,
Hebrews 6:4
For it is impossible to arouse people to a fresh repentance when they have once for all come into the light and had a taste of the gift from heaven, and shared in the holy Spirit

And i

Mark 4:12
so that " 'They may look and look and yet not see, And listen and listen and yet not understand, Lest possibly they should turn and be forgiven.' ",
Revelation 22:2
and ran through the middle of the principal street of the city. On both sides of the river grew the tree of life. It bore twelve kinds of fruit, yielding a different kind each month, and its leaves were a cure for the heathen.

General references

Matthew 24:39
and knew nothing about it until the flood came and destroyed them all, so it will be at the coming of the Son of Man.