Mark 8:17
"Why are you arguing together because you have no bread? Do you not yet perceive and understand?
Mark 6:52
for they had not understood about the loaves; on the contrary their heart was hardened.
Matthew 15:17
"Do you not know how all that goes into the mouth passes into the stomach and is afterward evacuated;
Matthew 16:8-9
When Jesus knew it he said: "Weaklings in faith! Why are you arguing among yourselves, because you have no bread?
Mark 2:8
Jesus clearly perceived at once be the Spirit that they were thus reasoning in their hearts and said to them.
Mark 3:5
They were silent. Then looking around upon them with anger, and deeply grieved by the hardening of their hearts, he said to the man, "Stretch out your hand!" He stretched it out, and the hand was at once completely restored.
Mark 16:14
Afterward he appeared to the Eleven themselves, as they were eating, and reproached them for their lack of faith, and stubborn hearts, because they disbelieved those who had seen him risen.
Luke 24:25
"O foolish men," said Jesus, "slow of heart to believe all that the prophets have spoken!
John 2:24-25
but for his part Jesus was not trusting himself to them, because he knew all men,
John 16:30
Now we are sure that you know all things, and have no need for any one to question you; by this we believe that you came forth from God."
John 21:17
The third time Jesus asked him, "Am I really dear to you?" Peter was grieved because the third time he asked, "Am I really dear to you?" and he answered, "Master, you know all things, you know that you are dear to me."
Hebrews 5:11-12
Concerning him I have much to say, and much that is hard to make clear to you, because you have grown dull of hearing.
Revelation 2:23
And moreover, her children will I kill with pestilence. And all the churches shall know that I am he who searches the hearts and souls of men. I will give to each of you according to his works.