Mark 8:17
And Jesus knowing it, says to them, Why reason ye because ye have no bread? Do ye not yet perceive nor understand? Have ye your heart yet hardened?
Mark 6:52
for they understood not through the loaves: for their heart was hardened.
Isaiah 63:17
Why, O Jehovah, hast thou made us to err from thy ways, hast hardened our heart from thy fear? Return for thy servants' sake, the tribes of thine inheritance.
Matthew 15:17
Do ye not yet apprehend, that everything that enters into the mouth finds its way into the belly, and is cast forth into the draught?
Matthew 16:8-9
And Jesus knowing it, said, Why reason ye among yourselves, O ye of little faith, because ye have taken no bread?
Mark 2:8
And straightway Jesus, knowing in his spirit that they are reasoning thus within themselves, said to them, Why reason ye these things in your hearts?
Mark 3:5
And looking round upon them with anger, distressed at the hardening of their heart, he says to the man, Stretch out thy hand. And he stretched it out, and his hand was restored.
Mark 16:14
Afterwards as they lay at table he was manifested to the eleven, and reproached them with their unbelief and hardness of heart, because they had not believed those who had seen him risen.
Luke 24:25
And he said to them, O senseless and slow of heart to believe in all that the prophets have spoken!
John 2:24-25
But Jesus himself did not trust himself to them, because he knew all men,
John 16:30
Now we know that thou knowest all things, and hast not need that any one should demand of thee. By this we believe that thou art come from God.
John 21:17
He says to him the third time, Simon, son of Jonas, art thou attached to me? Peter was grieved because he said to him the third time, Art thou attached to me? and said to him, Lord, thou knowest all things; thou knowest that I am attached to thee. Jesus says to him, Feed my sheep.
Hebrews 4:12-13
For the word of God is living and operative, and sharper than any two-edged sword, and penetrating to the division of soul and spirit, both of joints and marrow, and a discerner of the thoughts and intents of the heart.
Hebrews 5:11-12
Concerning whom we have much to say, and hard to be interpreted in speaking of it, since ye are become dull in hearing.
Revelation 2:23
and her children will I kill with death; and all the assemblies shall know that I am he that searches the reins and the hearts; and I will give to you each according to your works.