Matthew 14:31
Immediately Jesus reached out His hand and took hold of Peter. “You of little faith,” He said, “why did you doubt?”

John 6:19-21
When they had rowed about three or four miles, they saw Jesus approaching the boat, walking on the sea—and they were terrified. / But Jesus spoke up: “It is I; do not be afraid.” / Then they were willing to take Him into the boat, and at once the boat reached the shore where they were heading.

Matthew 16:9-11
Do you still not understand? Do you not remember the five loaves for the five thousand, and how many basketfuls you gathered? / Or the seven loaves for the four thousand, and how many basketfuls you gathered? / How do you not understand that I was not telling you about bread? But beware of the leaven of the Pharisees and Sadducees.”

Mark 8:17-21
Aware of their conversation, Jesus asked them, “Why are you debating about having no bread? Do you still not see or understand? Do you have such hard hearts? / ‘Having eyes, do you not see? And having ears, do you not hear?’ And do you not remember? / When I broke the five loaves for the five thousand, how many basketfuls of broken pieces did you collect?” “Twelve,” they answered. ...

John 12:37-40
Although Jesus had performed so many signs in their presence, they still did not believe in Him. / This was to fulfill the word of Isaiah the prophet: “Lord, who has believed our message? And to whom has the arm of the Lord been revealed?” / For this reason they were unable to believe. For again, Isaiah says: ...

Exodus 14:11-12
They said to Moses, “Was it because there were no graves in Egypt that you brought us into the wilderness to die? What have you done to us by bringing us out of Egypt? / Did we not say to you in Egypt, ‘Leave us alone so that we may serve the Egyptians’? For it would have been better for us to serve the Egyptians than to die in the wilderness.”

Psalm 95:8-11
do not harden your hearts as you did at Meribah, in the day at Massah in the wilderness, / where your fathers tested and tried Me, though they had seen My work. / For forty years I was angry with that generation, and I said, “They are a people whose hearts go astray, and they have not known My ways.” ...

Hebrews 3:7-10
Therefore, as the Holy Spirit says: “Today, if you hear His voice, / do not harden your hearts, as you did in the rebellion, in the day of testing in the wilderness, / where your fathers tested and tried Me, and for forty years saw My works. ...

Isaiah 6:9-10
And He replied: “Go and tell this people, ‘Be ever hearing, but never understanding; be ever seeing, but never perceiving.’ / Make the hearts of this people calloused; deafen their ears and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.”

Deuteronomy 29:2-4
Moses summoned all Israel and proclaimed to them, “You have seen with your own eyes everything the LORD did in Egypt to Pharaoh, to all his officials, and to all his land. / You saw with your own eyes the great trials, and those miraculous signs and wonders. / Yet to this day the LORD has not given you a mind to understand, eyes to see, or ears to hear.

Jeremiah 5:21
“Hear this, O foolish and senseless people, who have eyes but do not see, who have ears but do not hear.

Ezekiel 12:2
“Son of man, you are living in a rebellious house. They have eyes to see but do not see, and ears to hear but do not hear, for they are a rebellious house.

Romans 11:8
as it is written: “God gave them a spirit of stupor, eyes that could not see, and ears that could not hear, to this very day.”

2 Corinthians 3:14-15
But their minds were closed. For to this day the same veil remains at the reading of the old covenant. It has not been lifted, because only in Christ can it be removed. / And even to this day when Moses is read, a veil covers their hearts.

Matthew 13:13-15
This is why I speak to them in parables: ‘Though seeing, they do not see; though hearing, they do not hear or understand.’ / In them the prophecy of Isaiah is fulfilled: ‘You will be ever hearing but never understanding; you will be ever seeing but never perceiving. / For this people’s heart has grown callous; they hardly hear with their ears, and they have closed their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn, and I would heal them.’