Zobel said:
I don't understand this comment. Second temple Judaism had various theories about the second power in heaven, proto-Arian beliefs among them (also adoptionism etc). You could potentially see the early Christian Christological controversies as addressing these pre-Christian second temple beliefs. St John of Damascus describes Islam as a Christian heresy way back in this way. At any rate one way to see it is that small-O Orthodox Christian trinitarianism was one of the extant Judaisms in the first century, proto-rabbinic Judaism in the form of pharisaism was another, but there were others. Then Arianism, Adoptionists, Ebionites, etc all become different views which all claimed to exclusively represent authentic Judaism. Only Rabbinic Judaism and Christianity really continued - but there's no reason you couldn't put Islam right there with them.
Kinda like football, soccer, rugby all presumably each have early forms but diverged well after their single common ancestor (in this case sometime after Abraham or whatever) but before their final form arrives.
Well, I think both those theories are bunk, so yes, they don't necessarily make sense. I meant specifically that early Islamic practice logically would have overlapped far more with Arab Jewish ritual practice - lending that revisionist theory more credence - than the Syrian school, which is a logical conclusion if you only base your theory off coins and architecture, engage in questionable linguistics, and ignore almost all textual evidence, both Muslim and non-Muslim, to the contrary.
In the sense that Islam is continuation of Judaism, or that it is one of the three extant representations of Judaism today… I think you might garner a vehement denial from a orthodox Sunni Muslim, but I am not inclined to disagree. I buy that the earliest Islam, what existed during Muhammad's time, would have regarded itself as a continuation of the Abrahamic movement. Where I think the crystallisation of Islam as a totally separate movement occurs is not as a reaction to Christianity or Judaism - or as a mythical justification for Arab conquest - but as a result of an internal civil war between three overarching competing ideologies on the nature of religious leadership of the movement and how the role of that leader informs the practices and beliefs of that movement.