Luke 8:25

And He said to them, [Why are you so fearful?] Where is your
                faith (your trust, your confidence in Me--in My veracity and My integrity)? And they
                were seized with alarm  and  profound  and  reverent dread, and they marveled, saying to one another, Who then is
                this, that He commands even wind and sea, and they obey Him? (Luke 8:25 AMP)