Strong G570 ἀπιστία apistia · unbelief

Mark

1. Mark 6:6
   And he marvelled because of their unbelief. And he went round about the villages, teaching.
2. Mark 9:24
   And straightway the father of the child cried out, and said with tears, Lord, I believe; help thou mine unbelief.
3. 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.