Matthew 13:15

For this people's soul has grown dull, and with their ears they can scarcely hear, and they have shut tight their eyes, so that they will never see with their eyes, and hear with their ears, and understand with their hearts, and turn to me, so that I may cure them!'

Hebrews 5:11

I have much to say to you about Him, but it is difficult to make it clear to you, since you have become so dull in your spiritual senses.

John 8:43-44

Why is it that you misunderstand what I say? It is because you cannot listen to what I teach.

2 Timothy 4:4

and they will cease to listen to the truth and will turn to listen to myths.

Mark 4:12

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

Acts 3:19

So now repent and turn to Him, to have your sins wiped out, that times of revival may come from the presence of the Lord,

Acts 7:57

But they raised a great shout and held their ears, and all together rushed upon him,

2 Thessalonians 2:10-11

and with a completely wicked deception for men who are on the way to destruction, because they refused to love the truth so as to be saved.

2 Timothy 2:25-26

With gentleness he must correct his opponents, for God might grant them repentance that would lead them to a full knowledge of the truth,

Hebrews 6:4-6

For it is impossible for those who have once for all been enlightened and have experienced the gift from heaven, who have been made sharers of the Holy Spirit

Revelation 22:2

down the middle of the city's Broadway. On both sides of the river grew the tree of life, which bore twelve kinds of fruit, yielding a different kind each month, and its leaves contained the remedy to cure the nations.

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 misunderstand what I say? It is because you cannot listen to what I teach.
Acts 7:57
But they raised a great shout and held their ears, and all together rushed upon him,
2 Timothy 4:4
and they will cease to listen to the truth and will turn to listen to myths.
Hebrews 5:11
I have much to say to you about Him, but it is difficult to make it clear to you, since you have become so dull in your spiritual senses.

And should be

Acts 3:19
So now repent and turn to Him, to have your sins wiped out, that times of revival may come from the presence of the Lord,
2 Timothy 2:25
With gentleness he must correct his opponents, for God might grant them repentance that would lead them to a full knowledge of the truth,
Hebrews 6:4
For it is impossible for those who have once for all been enlightened and have experienced the gift from heaven, who have been made sharers of the Holy Spirit

And i

Mark 4:12
'They may look and look and yet not see, And listen and listen and yet not understand, Lest, perchance, they should turn and be forgiven.'"
Revelation 22:2
down the middle of the city's Broadway. On both sides of the river grew the tree of life, which bore twelve kinds of fruit, yielding a different kind each month, and its leaves contained the remedy to cure the nations.

General references

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