'Fear Not' in the Bible

But while he thought on these things, lo! an angel of the Lord appeared to him in a dream, saying, Joseph, son of David, fear not to take to thee Mary thy wife; for that which is conceived in her is by the Holy Spirit.

And fear not those who 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.

Fear not therefore; ye are of more value than many sparrows.