Well THANK YOU for the explanation! (...wondering just how many I've offended over the years without even knowing it...)!
"...offended..."
It's no real big deal. My dear, sweet, Christian mother-in-law and her whole family use that saying all the time knowing good and well what it's referencing. :)
I'd venture to guess that there's a whole lot of folks that use the saying that don't know what it means. :)