Well since the gods don't have stats in 4e, one could look at it as a particle/wave problem.
Thats not correct. 4E gods have stats and are the big bosses of 4E. Just look at Tiamat.
Well since the gods don't have stats in 4e, one could look at it as a particle/wave problem.
Good deities could send messengers to the ascended deity informing him of his error. Not sure that I can see how the ascended deity could continue with this mistake without calling into question his intelligence, wisdom, and/or alignment.
Of course part of your example AFAICT relies on the premise that a deity was actually able to successfully fake his identity (the demon you mention) in the first place. This bit of reasoning essentially is circular (the same messenger angels could pretty quickly spread the word among the highest eschelons of mortal priesthoods). I can see a demon masquerading as a god at a local level, but at the point at which a mortal is able to ascend to be a god that seems far-fetched.
Those beings are not unspecified in the important senses. You seem to be suggesting that the clerics of these gods really don't know what they're doing when they cast commune, and they might was well just be asking some random passer-by. Otherwise I don't get the implications of this.
Good deities could send messengers to the ascended deity informing him of his error. Not sure that I can see how the ascended deity could continue with this mistake without calling into question his intelligence, wisdom, and/or alignment.
Of course part of your example AFAICT relies on the premise that a deity was actually able to successfully fake his identity (the demon you mention) in the first place. This bit of reasoning essentially is circular (the same messenger angels could pretty quickly spread the word among the highest eschelons of mortal priesthoods). I can see a demon masquerading as a god at a local level, but at the point at which a mortal is able to ascend to be a god that seems far-fetched.
For the players, yes, this will be largely unimportant. For the NPC followers, though, this is of ultimate importance. If the PCs decide they want to become allies/enemies of this religion or even make a PC of this religion, it will be important as well.
If this religion IS the "correct" one, there will likely be world-sweeping ramifications should this religion start a crusade against others. Followers of other Good faiths will be devastated to learn that they were following demons et al all along, while Evil faiths will simply chug along as is (for the most part). No one likes to be told they've been lied to, however, except maybe the priests of a God of Lies.
If this religion is "wrong", then the priests simply become another statistic for PC's to kill.
And, when you are asking questions about gods, you accept the answers form unspecified beings from another plane because... the spell description in the PHB tells you to? Note that the characters in the game world don't have copies of the PHB...
All it would take is multiple communes giving multiple contradicting answers to the same question, and all certainty regarding the true answer to said question would be blown out of the water.
So some sufficiently powerful third-party demon/trickster god/ur-priest/whatever can, just to mess with people, wish that all commune questions about the true nature of X be answered "Yes".
Or the GM can just rule that divine matters are not the business of mortals, and thus by ancient divine pact, questions about such things go unanswered, or are answered vaguely. Or decide that the gods don't personally answer communes, their servants do, and that those servants can't discuss divine matters; or maybe they occasionally have their own agendas. Etc.
I meant it was unspecified in that we were not talking about communing with a particular, specific god. In a specific campaign, there might be some reason to trust or understand the answer given by a particular being - but were were talking in the generic sense, so it was unspecified.
Let me put it another way - "Demon" and "Devil" are human classifications - depending on the cosmology of the world, they may not be metaphysically meaningful. Nor may the words "Chaotic Good" have the same meaning to the gods as they do in the rulebook. A heftily Lawful Good god may look upon a True Neutral god as being relatively chaotic and evil.
And, if the god you are asking has "skin in the game", such that how you react to the question is important, the answer may be slanted to suit, no?
It isn't that the clerics don't know what they are doing - it is that when you are talking about entities that have their own goals, trusting them to be direct and literal is only wise if your GM promises that they will always be direct and literal.
And, of course, if the PCs aren't casting the spells themselves, and are getting their answers through NPCs... well, then what they get is filtered through a mortal agent who may have his or her own agenda or beliefs.
The point being that the existence of the spells does not necessarily clarify all areas of doubt and uncertainty in the mortal populace. Things may be clear if the GM wants them that way, or they may be murky.