Mark 4:40

And he said to them, "Why are you fearful? Do you not yet have faith?"

Matthew 14:31

And immediately Jesus extended his hand [and] caught him and said to him, "[You] of little faith! Why did you doubt?"

Luke 8:25

And he said to them, "Where [is] your faith?" But they were afraid [and] were astonished, saying to one another, "Who then is this, that he commands even the winds and the water and they obey him?"

Psalm 46:1-3

God [is] our refuge and strength, a very sufficient help in troubles.

Isaiah 42:3

He will not break a broken reed, and he not will extinguish a dim wick. He will bring justice forth in faithfulness.

Isaiah 43:2

When you pass through the waters, I [will be] with you, and through the rivers, they shall not flow over you. When you walk through fire, you shall not be burned, and [the] flame shall not scorch you.

Matthew 6:30

But if God dresses the grass of the field in this way, [although it] is [here] today and tomorrow is thrown into the oven, will he not [do so] much more [for] you, you of little faith?

Matthew 8:26

And he said to them, "Why are you fearful, [you] of little faith?" Then he got up [and] rebuked the winds and the sea and there was a great calm.

Matthew 16:8

But knowing [this], Jesus said, "Why are you discussing among yourselves that you did not take bread, [you] of little faith?

John 6:19-20

Then [when they] had rowed about twenty-five or thirty stadia, they saw Jesus walking on the sea and coming near the boat, and they were afraid.

Treasury of Scripture Knowledge

Summary

And he said unto them, Why are ye so fearful? how is it that ye have no faith?

General references

Bible References

Why

Psalm 46:1
God [is] our refuge and strength, a very sufficient help in troubles.
Isaiah 42:3
He will not break a broken reed, and he not will extinguish a dim wick. He will bring justice forth in faithfulness.
Isaiah 43:2
When you pass through the waters, I [will be] with you, and through the rivers, they shall not flow over you. When you walk through fire, you shall not be burned, and [the] flame shall not scorch you.
Matthew 8:26
And he said to them, "Why are you fearful, [you] of little faith?" Then he got up [and] rebuked the winds and the sea and there was a great calm.
Matthew 14:31
And immediately Jesus extended his hand [and] caught him and said to him, "[You] of little faith! Why did you doubt?"
Luke 8:25
And he said to them, "Where [is] your faith?" But they were afraid [and] were astonished, saying to one another, "Who then is this, that he commands even the winds and the water and they obey him?"
John 6:19
Then [when they] had rowed about twenty-five or thirty stadia, they saw Jesus walking on the sea and coming near the boat, and they were afraid.

No faith

Matthew 6:30
But if God dresses the grass of the field in this way, [although it] is [here] today and tomorrow is thrown into the oven, will he not [do so] much more [for] you, you of little faith?
Matthew 16:8
But knowing [this], Jesus said, "Why are you discussing among yourselves that you did not take bread, [you] of little faith?

General references

Psalm 107:29
He made [the] storm be still and their waves became calm.
Matthew 16:11
How do you not understand that I did not speak to you about bread? But beware of the leaven of the Pharisees and Sadducees!"