Mark 8:17

And when Jesus knew it, he saith unto them, Why reason ye, because ye have no bread? perceive ye not yet, neither understand? have ye your heart yet hardened?

Mark 6:52

For they considered not the miracle of the loaves: for their heart was hardened.

Isaiah 63:17

O LORD, why hast thou made us to err from thy ways, and hardened our heart from thy fear? Return for thy servants' sake, the tribes of thine inheritance.

Matthew 15:17

Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?

Matthew 16:8-9

Which when Jesus perceived, he said unto them, O ye of little faith, why reason ye among yourselves, because ye have brought no bread?

Mark 2:8

And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts?

Mark 3:5

And when he had looked round about on them with anger, being grieved for the hardness of their hearts, he saith unto the man, Stretch forth thine hand. And he stretched it out: and his hand was restored whole as the other.

Mark 16:14

Afterward he appeared unto the eleven as they sat at meat, and upbraided them with their unbelief and hardness of heart, because they believed not them which had seen him after he was risen.

Luke 24:25

Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:

John 2:24-25

But Jesus did not commit himself unto them, because he knew all men,

John 16:30

Now are we sure that thou knowest all things, and needest not that any man should ask thee: by this we believe that thou camest forth from God.

John 21:17

He saith unto him the third time, Simon, son of Jonas, lovest thou me? Peter was grieved because he said unto him the third time, Lovest thou me? And he said unto him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith unto him, Feed my sheep.

Hebrews 4:12-13

For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.

Hebrews 5:11-12

Of whom we have many things to say, and hard to be uttered, seeing ye are dull of hearing.

Revelation 2:23

And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.

Treasury of Scripture Knowledge

Summary

And when Jesus knew it, he saith unto them, Why reason ye, because ye have no bread? perceive ye not yet, neither understand? have ye your heart yet hardened?

Bible References

Knew

Mark 2:8
And immediately when Jesus perceived in his spirit that they so reasoned within themselves, he said unto them, Why reason ye these things in your hearts?
John 2:24
But Jesus did not commit himself unto them, because he knew all men,
John 16:30
Now are we sure that thou knowest all things, and needest not that any man should ask thee: by this we believe that thou camest forth from God.
John 21:17
He saith unto him the third time, Simon, son of Jonas, lovest thou me? Peter was grieved because he said unto him the third time, Lovest thou me? And he said unto him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith unto him, Feed my sheep.
Hebrews 4:12
For the word of God is quick, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, and of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
Revelation 2:23
And I will kill her children with death; and all the churches shall know that I am he which searcheth the reins and hearts: and I will give unto every one of you according to your works.

Perceive

Mark 3:5
And when he had looked round about on them with anger, being grieved for the hardness of their hearts, he saith unto the man, Stretch forth thine hand. And he stretched it out: and his hand was restored whole as the other.
Mark 6:52
For they considered not the miracle of the loaves: for their heart was hardened.
Mark 16:14
Afterward he appeared unto the eleven as they sat at meat, and upbraided them with their unbelief and hardness of heart, because they believed not them which had seen him after he was risen.
Isaiah 63:17
O LORD, why hast thou made us to err from thy ways, and hardened our heart from thy fear? Return for thy servants' sake, the tribes of thine inheritance.
Matthew 15:17
Do not ye yet understand, that whatsoever entereth in at the mouth goeth into the belly, and is cast out into the draught?
Matthew 16:8
Which when Jesus perceived, he said unto them, O ye of little faith, why reason ye among yourselves, because ye have brought no bread?
Luke 24:25
Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:
Hebrews 5:11
Of whom we have many things to say, and hard to be uttered, seeing ye are dull of hearing.

General references

Matthew 13:13
Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.
Matthew 15:16
And Jesus said, Are ye also yet without understanding?
Matthew 16:10
Neither the seven loaves of the four thousand, and how many baskets ye took up?
Luke 9:45
But they understood not this saying, and it was hid from them, that they perceived it not: and they feared to ask him of that saying.

King James Version Public Domain