Thread Ninja Posted:

Actually only the Jews and Christians worship the same God, (Jehova or more properly, YHWH) the Muslims do not.

Prior to Muhammed, the people of the Saudi region were polytheistic, though the majority of those people worshipped a god of the moon called Allah.

You can still see signs of the moon connection in many muslim countries flags.

When Muhammed decided made up a new monotheistic religion and decided to force all the people he could to follow, he used the moon god Allah, who most of that regions peopole already worshiped, and simply said that Allah was the creator and the God of Abraham, whom the people of that region claimed as an ancestor (through Ishmael instead of Isaac whom the Jews claim.)

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all righty, that just means internal inconsistency within the history of the religion, but all three religions currently believe they worship the god of Abraham.