Mark 4:40

Jesus said to them, “Why are you afraid? Do you still have no faith and confidence [in Me]?”

Matthew 14:31

Immediately Jesus extended His hand and caught him, saying to him, “O you of little faith, why did you doubt?”

And He said to them, “Where is your faith [your confidence in Me]?” They were afraid and astonished, saying to one another, “Who then is this, that He commands even the winds and the sea, and they obey Him?”

Psalm 46:1-3

God is our refuge and strength [mighty and impenetrable],
A very present and well-proved help in trouble.

Isaiah 42:3

“A broken reed He will not break [off]
And a dimly burning wick He will not extinguish [He will not harm those who are weak and suffering];
He will faithfully bring forth justice.

Isaiah 43:2

“When you pass through the waters, I will be with you;
And through the rivers, they will not overwhelm you.
When you walk through fire, you will not be scorched,
Nor will the flame burn you.

Matthew 6:30

But if God so clothes the grass of the field, which is alive and green today and tomorrow is [cut and] thrown [as fuel] into the furnace, will He not much more clothe you? You of little faith!

Matthew 8:26

He said to them, “Why are you afraid, you men of little faith?” Then He got up and rebuked the winds and the sea, and there was [at once] a great and wonderful calm [a perfect peacefulness].

Matthew 16:8

But Jesus, aware of this, said, “You men of little faith, why are you discussing among yourselves that you have no bread?

John 6:19-20

Then, when they had rowed three or four miles [and were near the center of the sea], they saw Jesus walking on the sea and approaching the boat; and they were [terribly] frightened.

Treasury of Scripture Knowledge

Summary

Mark 4:40

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

Why

John 6:19

No faith

Matthew 6:30

Matthew 16:8

General references

Psalm 107:29

Matthew 16:11

Bible References

Why