Matthew 24:6

And you will hear of wars and rumors of wars: see that you be not troubled, for all things must be fulfilled; but the end is not yet.

Matthew 10:28

And fear not them that kill the body, but are not able to kill the soul. But rather fear him who is able to destroy both soul and body in hell.

Treasury of Scripture Knowledge

Summary

And say unto him, Take heed, and be quiet; fear not, neither be fainthearted for the two tails of these smoking firebrands, for the fierce anger of Rezin with Syria, and of the son of Remaliah.

Bible References

Fear not

Matthew 10:28
And fear not them that kill the body, but are not able to kill the soul. But rather fear him who is able to destroy both soul and body in hell.
Matthew 24:6
And you will hear of wars and rumors of wars: see that you be not troubled, for all things must be fulfilled; but the end is not yet.