Mark 8:17
And Jesus having known, saith to them, 'Why do ye reason, because ye have no loaves? do ye not yet perceive, nor understand, yet have ye your heart hardened?
Mark 6:52
for they understood not concerning the loaves, for their heart hath been hard.
Isaiah 63:17
Why causest Thou us to wander, O Jehovah, from Thy ways? Thou hardenest our heart from Thy fear, Turn back for Thy servants' sake, The tribes of Thine inheritance.
Matthew 15:17
do ye not understand that all that is going into the mouth doth pass into the belly, and into the drain is cast forth?
Matthew 16:8-9
And Jesus having known, said to them, 'Why reason ye in yourselves, ye of little faith, because ye took no loaves?
Mark 2:8
And immediately Jesus, having known in his spirit that they thus reason in themselves, said to them, 'Why these things reason ye in your hearts?
Mark 3:5
And having looked round upon them with anger, being grieved for the hardness of their heart, he saith to the man, 'Stretch forth thy hand;' and he stretched forth, and his hand was restored whole as the other;
Mark 16:14
Afterwards, as they are reclining (at meat), he was manifested to the eleven, and did reproach their unbelief and stiffness of heart, because they believed not those having seen him being raised;
Luke 24:25
And he said unto them, 'O inconsiderate and slow in heart, to believe on all that the prophets spake!
John 2:24-25
and Jesus himself was not trusting himself to them, because of his knowing all men,
John 16:30
now we have known that thou hast known all things, and hast no need that any one do question thee; in this we believe that from God thou didst come forth.'
John 21:17
He saith to him the third time, 'Simon, son of Jonas, dost thou dearly love me?' Peter was grieved that he said to him the third time, 'Dost thou dearly love me?' and he said to him, 'Lord, thou hast known all things; thou dost know that I dearly love thee.' Jesus saith to him, 'Feed my sheep;
Hebrews 4:12-13
for the reckoning of God is living, and working, and sharp above every two-edged sword, and piercing unto the dividing asunder both of soul and spirit, of joints also and marrow, and a discerner of thoughts and intents of the heart;
Hebrews 5:11-12
concerning whom we have much discourse and of hard explanation to say, since ye have become dull of hearing,
Revelation 2:23
and her children I will kill in death, and know shall all the assemblies that I am he who is searching reins and hearts; and I will give to you -- to each -- according to your works.