Mark 4:40

why, said he, are ye so frighted? are ye still so void of faith?

Matthew 14:31

immediately Jesus stretched out his hand, and caught him, diffident man, said he, why were you in suspence?

Luke 8:25

but to his disciples he said, where is your faith? while they, seiz'd with fear and admiration, said to one another, who can this man be, that he commands even the winds, and the waves, and they obey?

Matthew 6:30

now if God thus adorns the flower of the field, which thriving to day, is to morrow thrown into the oven, how much more shall he provide for you, if you have any degree of faith?

Matthew 8:26

and he answer'd, why are you afraid, o incredulous people? then he arose and rebuked the winds and the sea, and there was a great calm.

Matthew 16:8

which Jesus perceiving, he said, distrustful men, why do ye trouble your heads about forgetting the bread?

John 6:19-20

so when they had rowed about five and twenty, or thirty furlongs, seeing Jesus walking on the sea, and drawing nigh to the ship, they were frightned.

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

Matthew 8:26
and he answer'd, why are you afraid, o incredulous people? then he arose and rebuked the winds and the sea, and there was a great calm.
Matthew 14:31
immediately Jesus stretched out his hand, and caught him, diffident man, said he, why were you in suspence?
Luke 8:25
but to his disciples he said, where is your faith? while they, seiz'd with fear and admiration, said to one another, who can this man be, that he commands even the winds, and the waves, and they obey?
John 6:19
so when they had rowed about five and twenty, or thirty furlongs, seeing Jesus walking on the sea, and drawing nigh to the ship, they were frightned.

No faith

Matthew 6:30
now if God thus adorns the flower of the field, which thriving to day, is to morrow thrown into the oven, how much more shall he provide for you, if you have any degree of faith?
Matthew 16:8
which Jesus perceiving, he said, distrustful men, why do ye trouble your heads about forgetting the bread?

General references

Matthew 16:11
why, can't you perceive, that in cautioning you to beware of the leaven of the Pharisees, and of the Sadducees, I did not speak of bread?