The question is, was every god real?
Because there has been, and is, quite a lot of gods being worshipped.
Greek and Egyptians were, same for Japanese (possibly not all of them, but enough for a pantheon).
And if every god was real, were religions displacing each other a product of new gods being created and old ones dying?
That remains an interesting question either way.
There is clear evidence for pantheons
not necessarily dying off even though their worship ceases in the lands it used to occupy. Egypt has been a predominantly Christian or Muslim region for something like 1600 to 1800 years, and apparently the ancient Egyptian gods are still going strong.
So it's pretty clear that whatever kind of god Pandora created,* they at least don't need mortal worship to
live. Or not the worship of more than a relative handful of mortals, such as could keep their cult practices secret even during times of persecution and official disfavor.
And conversely, the Egyptian gods don't seem to feel the need to exert themselves to promote Kemeticism. Many other pantheon-gods who are still alive are, similarly, doing little or nothing to promote their own worship, even though they could probably get away with at least
some of that without really breaching the Masquerade, even if they care about that.
Maybe "having a cult that worships you" is something that goes in and out of style among pantheon-gods, and sometimes they're pretty active in it and sometimes they just feel like it's passe and don't get personally involved much?
Maybe these are
quite anthropomorphic gods, psychologically as well as physically, and so as long as they have a source of magical sustenance of
some kind, a cult following of a couple of hundred is about as satisfying to them as a cult following of millions, because they don't personally
know more people than that?
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*(she seems to call them
genius loci, which is interesting because we don't normally associate most of the pantheon-gods with fixed locations)
While I didn't make it explicit, i'm assuming that at some point people started to fight back against the gods with some success, since otherwise there's no reason for them to have ever stopped ruling at all.
Insofar as they
did rule over mortals, anyway.
It's quite possible that stories of the gods lording it over mortals were in many cases quite exaggerated; they may
always have been relatively aloof, with the behavior of the modern Egyptian gods being something of an exception in that they bother to project power through mortal agents over a wide region.
At that point, justifying your rebellion against the gods by claiming someone has your back is just a way to make people more confident.
Eh. Personally, I feel like the message of active rebellion would be better, simply because making up a false deity who confers no powers on their worshippers is likely to backfire as a morale stunt.
If people are used to Zeus periodically showing up in person, lobbing around a few thunderbolts, and date-raping whichever maiden he takes a liking to... Well, if they can figure out a way to not get blown up by thunderbolts, they may well rebel against such treatment. But if you say that you totally have a god of your own who
doesn't throw thunderbolts, sooner or later Zeus is gonna start calling that god out, and if it turns out that said god is actually your fanfic character, you lose a lot of credibility.
Given this. My speculation would be that |YHWH| was a the other Lillith that has been mentioned. He does has created a large variety of children (the Angels and in some interpretations the Demons too).
Hm. That's actually an interesting one.