The irony of this surprising command is that, though it's what we all really want to hear, we have as much difficulty, if not more, in obeying this command as any other. We all cherish fear so closely that we find we can't shed it even when we're told to do so...Every one of us has something on her or his mind about which we badly need a voice to say: 'Don't be afraid. it's going to be all right.' As the Lord said to Lady Julian: 'All shall be well, and all manner of things shall be well.' Let's make no mistake about it: until you learn to live without fear you won't find it easy to follow Jesus.*
From "The God Who Raises the Dead" in Following Jesus by N.T. Wright.
*This quote comes from an advance proof of the book`s updated edition and may not be exactly as published.