Mark 8:17
He, perceiving it, said to them, "Why do you reason that it's because you have no bread? Do you not perceive yet, neither understand? Are your hearts hardened?
Mark 6:52
for they had not understood about the loaves, but their hearts were hardened.
Isaiah 63:17
O LORD, why do you make us to stray from your ways, and harden our heart from your fear? Return for your servants' sake, the tribes of your inheritance.
Matthew 15:17
Do you not understand that whatever goes into the mouth passes into the belly, and then out of the body?
Matthew 16:8-9
But Jesus, becoming aware of this, said, "You of little faith, why are you discussing among yourselves about having no bread?
Mark 2:8
And immediately Jesus, perceiving in his spirit that they so reasoned within themselves, said to them, "Why do you reason these things in your hearts?
Mark 3:5
And when he had looked around at them with anger, being grieved at the hardening of their hearts, he said to the man, "Stretch out your hand." He stretched it out, and his hand was restored.
Mark 16:14
Afterward he was revealed to the Eleven themselves as they sat at the table, and he rebuked them for their unbelief and hardness of heart, because they did not believe those who had seen him after he had risen.
Luke 24:25
Then he said to them, "O foolish ones, and slow of heart to believe in all that the prophets have spoken.
John 2:24-25
But Jesus did not trust himself to them, because he knew everyone,
John 16:30
Now we know that you know all things and do not need anyone to question you. By this we believe that you came forth from God."
John 21:17
He said to him the third time, "Simon, son of John, do you have affection for me?" Peter was grieved because he asked him the third time, "Do you have affection for me?" He said to him, "Lord, you know everything. You know that I have affection for you." Jesus said to him, "Feed my sheep.
Hebrews 4:12-13
For the word of God is living, and active, and sharper than any two-edged sword, and piercing even to the dividing of soul and spirit, of both joints and marrow, and is able to discern the thoughts and intentions of the heart.
Hebrews 5:11-12
About him we have many words to say, and hard to interpret, seeing you have become dull of hearing.
Revelation 2:23
I will kill her children with Death, and all the churches will know that I am he who searches the minds and hearts. I will give to each one of you according to your deeds.