Mark 8:17

Jesus, aware of this [discussion], said to them, “Why are you discussing [the fact] that you have no bread? Do you still not see or understand? Are your hearts hardened?

Mark 6:52

because they had not understood [the miracle of] the loaves [how it revealed the power and deity of Jesus]; but [in fact] their heart was hardened [being oblivious and indifferent to His amazing works].

Isaiah 63:17


O Lord, why do You cause us to stray from Your ways
And harden our heart from fearing You [with reverence and awe]?
Return for Your servants’ sake, the tribes of Your heritage.

Matthew 15:17

Do you not understand that whatever goes into the mouth passes into the stomach, and is eliminated?

Matthew 16:8-9

But Jesus, aware of this, said, “You men of little faith, why are you discussing among yourselves that you have no bread?

Mark 2:8

Immediately Jesus, being fully aware [of their hostility] and knowing in His spirit that they were thinking this, said to them, “Why are you debating and arguing about these things in your hearts?

Mark 3:5

After looking around at them with anger, grieved at the hardness and arrogance of their hearts, He told the man, “Hold out your hand.” And he held it out, and his hand was [completely] restored.

Mark 16:14

Later, Jesus appeared to the eleven [disciples] themselves as they were reclining at the table; and He called them to account for their unbelief and hardness of heart, because they had not believed those who had seen Him after He had risen [from death].

Luke 24:25

Then Jesus said to them, “O foolish men, and slow of heart to trust and believe in everything that the prophets have spoken!

John 2:24-25

But Jesus, for His part, did not entrust Himself to them, because He knew all people [and understood the superficiality and fickleness of human nature],

John 16:30

Now we know that You know all things, and have no need for anyone to question You; because of this we believe [without any doubt] that you came from God.”

John 21:17

He said to him the third time, “Simon, son of John, do you love Me [with a deep, personal affection for Me, as for a close friend]?” Peter was grieved that He asked him the third time, “Do you [really] love Me [with a deep, personal affection, as for a close friend]?” And he said to Him, “Lord, You know everything; You know that I love You [with a deep, personal affection, as for a close friend].” Jesus said to him, “Feed My sheep.

Hebrews 4:12-13

For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.

Hebrews 5:11-12

Concerning this we have much to say, and it is hard to explain, since you have become dull and sluggish in [your spiritual] hearing and disinclined to listen.

Revelation 2:23

And I will kill her children (followers) with pestilence [thoroughly annihilating them], and all the churches will know [without any doubt] that I am He who searches the minds and hearts [the innermost thoughts, purposes]; and I will give to each one of you [a reward or punishment] according to your deeds.

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
Immediately Jesus, being fully aware [of their hostility] and knowing in His spirit that they were thinking this, said to them, “Why are you debating and arguing about these things in your hearts?
John 2:24
But Jesus, for His part, did not entrust Himself to them, because He knew all people [and understood the superficiality and fickleness of human nature],
John 16:30
Now we know that You know all things, and have no need for anyone to question You; because of this we believe [without any doubt] that you came from God.”
John 21:17
He said to him the third time, “Simon, son of John, do you love Me [with a deep, personal affection for Me, as for a close friend]?” Peter was grieved that He asked him the third time, “Do you [really] love Me [with a deep, personal affection, as for a close friend]?” And he said to Him, “Lord, You know everything; You know that I love You [with a deep, personal affection, as for a close friend].” Jesus said to him, “Feed My sheep.
Hebrews 4:12
For the word of God is living and active and full of power [making it operative, energizing, and effective]. It is sharper than any two-edged sword, penetrating as far as the division of the soul and spirit [the completeness of a person], and of both joints and marrow [the deepest parts of our nature], exposing and judging the very thoughts and intentions of the heart.
Revelation 2:23
And I will kill her children (followers) with pestilence [thoroughly annihilating them], and all the churches will know [without any doubt] that I am He who searches the minds and hearts [the innermost thoughts, purposes]; and I will give to each one of you [a reward or punishment] according to your deeds.

Perceive

Mark 3:5
After looking around at them with anger, grieved at the hardness and arrogance of their hearts, He told the man, “Hold out your hand.” And he held it out, and his hand was [completely] restored.
Mark 6:52
because they had not understood [the miracle of] the loaves [how it revealed the power and deity of Jesus]; but [in fact] their heart was hardened [being oblivious and indifferent to His amazing works].
Mark 16:14
Later, Jesus appeared to the eleven [disciples] themselves as they were reclining at the table; and He called them to account for their unbelief and hardness of heart, because they had not believed those who had seen Him after He had risen [from death].
Isaiah 63:17

O Lord, why do You cause us to stray from Your ways
And harden our heart from fearing You [with reverence and awe]?
Return for Your servants’ sake, the tribes of Your heritage.
Matthew 15:17
Do you not understand that whatever goes into the mouth passes into the stomach, and is eliminated?
Matthew 16:8
But Jesus, aware of this, said, “You men of little faith, why are you discussing among yourselves that you have no bread?
Luke 24:25
Then Jesus said to them, “O foolish men, and slow of heart to trust and believe in everything that the prophets have spoken!
Hebrews 5:11
Concerning this we have much to say, and it is hard to explain, since you have become dull and sluggish in [your spiritual] hearing and disinclined to listen.

General references

Matthew 13:13
This is the reason I speak to the crowds in parables: because while [having the power of] seeing they do not see, and while [having the power of] hearing they do not hear, nor do they understand and grasp [spiritual things].
Matthew 15:16
And He said, “Are you still so dull [and unable to put things together]?
Matthew 16:10
Or the seven loaves for the four thousand, and how many large baskets you picked up?
Luke 9:45
However, they did not understand this statement. Its meaning was kept hidden from them so that they would not grasp it; and they were afraid to ask Him about it.