When a puppy reaches maturity it becomes a dog; when ice melts it is called water; when twelve months have been used up, we get a new calendar with the proper chronological name; when "magic" becomes scientific fact we refer to it as medicine, astronomy, etc. When one name is no longer appropriate for a given thing it is only logical to change it to a new one which better fits the subject. Why, then, do we not follow suit in the area of religion? Why continue to call a religion the same name when the tenets of that religion no longer fit the original one? Or, if religion does preach the same things that it always has, but its followers practice nearly none of its teachings, why do they continue to call themselves by the name given to followers of that religion?
source: The Satanic Bible, by Anton Lavey / Some Evidence Of New Satanic Age (PDF)