I think I knew what you meant, and I wasn't good at 'splainin' what I meant.
Islam is not the only "religion" (I consider it a political entity) that has used a rock as a deity, as you so deftly pointed out.
The Bible explains about Satan's Fall, and it also uses dragons in some of the more difficult-to-understand Books. And I don't think we have all of the Books of the Bible, so there is much we don't know.
But I DO know that when Muslims say "There is no god but Allah" they mean exactly that. There IS only one God. And He is called by many names. The Muslims, however, like to disagree with that concept.
That's an interesting thing to say. Here's how I look at it; tell me what you think of this:
From an archaeological perspective, there is strong pressure that would make it a very plausible claim to assert that we don't have all of the info; missing books, "lost gospels", etc. That is not an unreasonable position to take, if God is a passive and uninvolved party, or if He doesn't exist at all. In fact, to assert that God is passive and uninvolved, one MUST take the view that our collection of scripture is incomplete, because the parts we have, granting their authenticity, don't paint that kind of picture of God.
I happen to think that we do, in fact, have it all. Here's why:
The God described in the canon of scripture is a very active personality; very directly involved with individuals and their lives; relating one-on-one with a broad spectrum of people and expressing repeatedly His desire that people seek Him out to establish personal relationships with Him. "I want to know YOU," is the recurrent theme, "and I want you to know Me." Here are just two of myriad examples:
"I will take you for My people, and I will be your God."
--Exodous 6:7
"I will also walk among you and be your God, and you shall be My people."
--Leviticus 26:12
That's a very different kind of God than one who is dispassionate about His creation, and it seems to me that such a God as this, given the desires He expresses and the authority and power He possesses, has both the intent and capability to preserve intact the message He wants us to receive about Him, and has, indeed, done just that.
"Heaven and earth will pass away, but My words will not pass away."
--Matthew 24:35, Mark 13:31, and Luke 21:33
The question, then, is, "Do we believe that?"