Mark 6:52
For they reflected not upon the loaves, for their heart was hardened.
Mark 3:5
Then looking round about on them with indignation, exceedingly grieved for the hardness of their hearts, he saith to the man, Stretch out thine hand; and he stretched it out: and his hand was restored sound as the other.
Mark 8:17-21
And Jesus knowing it said unto them, Why reason ye together, because ye have no loaves? Do ye not yet consider, nor understand? Have ye your heart yet hardened?
Matthew 16:9-11
Do you not consider, nor remember the five loaves among the five thousand, and how many baskets ye took up?
Mark 7:18
And he saith to them, Are ye also so defective of intelligence? Do you not consider, that every thing from without that entereth into a man, cannot make him unclean?
Mark 16:14
Afterwards he shewed himself to the eleven, as they were sitting at table, and upbraided them for their infidelity and hardness of heart, because they did not believe those who had seen him after he was risen.
Luke 24:25
And he said unto them, O ye void of understanding, and slow of heart to believe all that the prophets have spoken!
Romans 11:7
What then is the result? Israel hath not obtained that which it seeketh; but the election hath obtained it, and the rest were blinded,