Bible Verses About Unbelief: Hardness of heart

Afterward he was revealed to the Eleven themselves as they sat at the table, and he rebuked them for their unbelief and hardness of heart, because they didn’t believe those who had seen him after he had risen.

But when some were hardened and disobedient, speaking evil of the Way before the multitude, he departed from them, and separated the disciples, reasoning daily in the school of Tyrannus.