to me it is just a phrase.
like some people say "sexier than socks on a rooster" - which makes no sense at all - they have just learned it in association with certain mental/physical reactions after hearing others say it in the same situations.
same with "the lord's" name.
after reading this thread though, I want to say it more - I never really thought it would bother anyone, but now that I see it does, then god damn, by jesus fucking christ I'm gonna take it up a notch.