Mark 8:17
And Jesus perceiving it saith unto them, Why reason ye, because ye have no bread? do ye not yet perceive, neither understand? have ye your heart hardened?
Mark 6:52
for they understood not concerning the loaves, but their heart was hardened.
Isaiah 63:17
O Jehovah, why dost thou make us to err from thy ways, and hardenest our heart from thy fear? Return for thy servants'sake, the tribes of thine inheritance.
Matthew 15:17
Perceive ye not, that whatsoever goeth into the mouth passeth into the belly, and is cast out into the draught?
Matthew 16:8-9
And Jesus perceiving it said, O ye of little faith, why reason ye among yourselves, because ye have no bread?
Mark 2:8
And straightway Jesus, perceiving in his spirit that they so reasoned within themselves, saith 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 at the hardening of their heart, he saith unto the man, Stretch forth thy hand. And he stretched it forth; and his hand was restored.
Mark 16:14
And afterward he was manifested unto the eleven themselves as they sat at meat; and he upbraided them with their unbelief and hardness of heart, because they believed not them that had seen him after he was risen.
Luke 24:25
And he said unto them, O foolish men, and slow of heart to believe in all that the prophets have spoken!
John 2:24-25
But Jesus did not trust himself unto them, for that he knew all men,
John 16:30
Now know we 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 John, 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 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 quick to discern the thoughts and intents of the heart.
Hebrews 5:11-12
Of whom we have many things to say, and hard of interpretation, seeing ye are become dull of hearing.
Revelation 2:23
And I will kill her children with death; and all the churches shall know that I am he that searcheth the reins and hearts: and I will give unto each one of you according to your works.