Christians can be concerned about many things and even frightened about circumstances. (I’m reasonably certain that Christians who have been burned to death had some fear.) But when a Christian expresses fear, and that fear overwhelms them, then that is outside Scripture. I understand that non-Christians won’t comprehend these statements, but I am not writing for them.
King James Bible Luke 21:36 - Words of Jesus:
“Watch ye therefore, and pray always, that ye may be accounted worthy to escape all these things that shall come to pass, and to stand before the Son of man.”
I prepare for whatever may come, knowing I don’t have to worry about the outcome.