Originally Posted by patsh
Isn't one of the main differences is that at it's most basic level, most Protestant groupings are, in a way, "made up"? I mean in the respect that you take a particular version of the Bible that you believe in. You then say that your life must be lived by what you interpret that version to be saying. The likes of Paisley, even though an extreme example, and quite a few preachers in America, can set up a whole sect based on their own opinions. Didn't Jello Biafra, of The Dead Kennedys, set up a church, which came within Protestantism, so he could be exempt from any military service?
Catholicism and Islam have different sects within them, but the basic belief and structure is the same, i.e. you can go to a mosque or church anywhere in the world and the priest/mullah will follow the same ceremony and teaching. In most Protestant services, the main "event" is the sermon, which will depend almost entirely on the personality and beliefs of the preacher/priest.