Mark 8:17
And when Jesus knew it, he said unto them, Why reason you, because you have no bread? perceive you not yet, neither understand? have you your heart yet hardened?
Mark 6:52
For they understood not the miracle of the loaves: for their hearts were hardened.
Isaiah 63:17
O LORD, why have you made us to err from your ways, and hardened our heart from your fear? Return for your servants' sake, the tribes of your inheritance.
Matthew 15:17
Do you not yet understand, that whatsoever enters in at the mouth goes into the belly, and is cast out into the drain?
Matthew 16:8-9
Which when Jesus perceived, he said unto them, O you of little faith, why reason you among yourselves, because you have brought no bread?
Mark 2:8
And immediately when Jesus perceived in his spirit that they so reasoned among themselves, he said unto them, Why reason you these things in your hearts?
Mark 3:5
And when he had looked around at them with anger, being grieved for the hardness of their hearts, he said unto the man, Stretch forth your 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 table, and rebuked them for their unbelief and hardness of heart, because they believed not them who had seen him after he was risen.
Luke 24:25
Then he said unto them, O foolish ones, 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 you know all things, and need not that any man should ask you: but this we believe that you came forth from God.
John 21:17
He said unto him the third time, Simon, son of Jonas, do you love me? Peter was grieved because he said unto him the third time, Do you love me? And he said unto him, Lord, you know all things; you know that I love you. Jesus said unto him, Feed my sheep.
Hebrews 4:12-13
For the word of God is living, and powerful, and sharper than any two-edged 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 explain, seeing you 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 who searches the minds and hearts: and I will give unto every one of you according to your works.