No actualy I am asking to make sure this is my god, and not some hypothetical devil or some other. Just because something posing as god tells me to do something doesn't mean I have to do it, I need to know it is god
... how would you tell? The judeochristian god is noted in biblical text as commanding some pretty horrible things and... not stopping it. Issac is one thing, but the bits where forces under god's command ripped pregnant women to pieces (hosea 13, nach) and whatnot are... there.
More generally, how can one be sure of anything in the bible itself if you believe there is a being capable of genuinely posing as the divine? That would seem to undermine the basis of... basically everything. Infinite deceiver can infinitely deceive. You open up the possibility that the entire belief system is, in fact, a grand scheme to damn billions. In the case of systems where salvation is contingent on specific beliefs -- like belief in the divinity of Jesus -- simply having attributed the acts in the original text to the wrong person would seem able to doom the souls of the entire religion's following in one stroke...
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Which leads to a question. Is there actually anywhere in the bible where demons or whathaveyou
do pose as YWHW? Know there's bits with
false gods or whatev', but what about the proposed genuine article? What about other holy texts? Demons posing as (one of the) god(s) is a pretty common thing in discourse and whatnot, but I'm actually having a little trouble recalling cases of it being in actual canon texts and such. Usually it's either of some lesser being or a different critter (false god, opposing god, etc.), from what I can remember...