Mark 8:17
And Jesus knowing it saith to them, Why reason ye, because ye have no bread? Perceive ye not yet, neither consider? Have ye your heart yet hardened?
Mark 6:52
For they considered not the miracle of the loaves; for their heart was hardened.
Matthew 15:17
Do not ye yet understand, that whatever entereth into the mouth, goeth into the belly, and is cast out into the vault?
Matthew 16:8-9
Jesus knowing it said to them, O ye of little faith, why reason ye among yourselves, because ye have taken no bread?
Mark 2:8
And Jesus immediately knowing in his spirit, that they so reasoned in themselves, said to them, Why reason ye thus in your hearts?
Mark 3:5
But they held their peace. And looking round upon them with anger, being grieved for the hardness of their hearts, he saith to the man, Stretch forth thine hand. And he stretched it forth: and his hand was restored.
Mark 16:14
Afterwards he appeared to the eleven, sitting at meat, and upbraided them with 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 to them, O foolish, and slow of heart to believe all that the prophets have spoken!
John 2:24-25
But Jesus did not trust himself to them,
John 16:30
Now we are sure thou knowest all things, and needest not that any should question thee: by this we believe that thou camest forth from God.
John 21:17
He saith to him, Yea, Lord, thou knowest that I love thee. He saith to him, Feed my sheep. He saith to him the third time, Simon, son of Jonah, lovest thou me? Peter was grieved, because he said to him the third time, Lovest thou me? And he said to him, Lord, thou knowest all things; thou knowest that I love thee. Jesus saith to 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 both of the soul and spirit, both of the joints and marrow, and is a discerner of the thoughts and intents of the heart.
Hebrews 5:11-12
Concerning whom we have many things to say, and hard to be explained, 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 who searcheth the reins and hearts; and I will give you, every man, according to your works.