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. And upbraided them with their unbelief - Never were there a people so difficult to be persuaded of the truth of spiritual things as the disciples. It may be justly asserted, that people of so skeptical a turn of mind would never credit any thing till they had the fullest evidence of its truth. The unbelief of the disciples is a strong proof of the truth of the Gospel of God. See the addition at the end.
Related Commentaries of Mark 16:14
Mark 16:14
14 Afterward he appeared unto the eleven as they sat at meat,a and upbraided them with their unbelief and hardness of heart, because they believed not them which had seen him after he was risen.