Mark 16:14 Mark 16

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. KJV...

Mark 9:24 Mark 9

And straightway the father of the child cried out, and said with tears, Lord, I believe; help thou mine unbelief. KJV...

Matthew 17:20 Matthew 17

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. KJV...

Hebrews 4:6 Hebrews 4

Seeing therefore it remaineth that some must enter therein, and they to whom it was first preached entered not in because of unbelief: KJV...