Mark 16:14
"Afterward he appeared unto the eleven as they sat at meat, and upbraided them with their unbelief and hardness of heart, because they believed not them which had seen him after he was risen."
Cross References (ranked by relevance)
And that he was seen of Cephas, then of the twelve:
Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.
As many as I love, I rebuke and chasten: be zealous therefore, and repent.
Then began he to upbraid the cities wherein most of his mighty works were done, because they repented not:
And he saith unto them, Are ye so without understanding also? Do ye not perceive, that whatsoever thing from without entereth into the man, it cannot defile him;
Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:
And the LORD said unto Moses, How long will this people provoke me? and how long will it be ere they believe me, for all the signs which I have shewed among them?
And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you.