Mark 4:40 He said to them, “Why are you so afraid? How is it that you have no faith?”

Matthew 14:31 Immediately Jesus stretched out his hand, took hold of him, and said to him, “You of little faith, why did you doubt?”

Mark 9:19 He answered him, “Unbelieving generation, how long shall I be with you? How long shall I bear with you? Bring him to me.”

Matthew 17:20 He said to them, “Because of your unbelief. For most certainly I tell you, if you have faith as a grain of mustard seed, you will tell this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you.

Mark 16:14 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.