'Unbelief' in the Bible

and he wondered because of their unbelief. And he was going round the villages, in a circle, teaching,

and immediately the father of the child, having cried out, with tears said, 'I believe, sir; be helping mine unbelief.'

Afterwards, as they are reclining (at meat), he was manifested to the eleven, and did reproach their unbelief and stiffness of heart, because they believed not those having seen him being raised;