Mark 6:52
They had not understood the loaves of bread. Their minds were closed.
Mark 3:5
He looked at them and was angry. He was also sad on account of their hard hearts. He said to the man: Stretch out your hand. He stretched it out and his hand was healed.
Mark 8:17-21
Hearing this Jesus said: Why do you reason about having no bread? Do you not understand? Are your hearts dull of understanding?
Isaiah 63:17
O Jehovah, why do you let us wander from your ways and become so stubborn that we are unable to respect you? Return for the sake of your servants. They are the tribes that belong to you.
Matthew 16:9-11
Do you still not see or remember the five cakes of bread of the five thousand, and the number of baskets you took up?
Mark 7:18
He replied: Do you not understand? Do you not know that which goes into the man from the outside cannot defile him?
Mark 16:14
Afterward he was revealed to the eleven as they sat at the table. He rebuked them for their unbelief and hardness of heart, because they did not believe those who had seen him after he had risen.
Luke 24:25
He said to them: You are foolish men. You are slow of heart to believe in all that the prophets have spoken!
Romans 11:7
What then? Israel has not obtained that which he seeks. The chosen ones have obtained it, and the rest were blinded (rendered stupid) (hardened) (made insensitive).