Why are you interested? What is your personal contribution, and what do you believe or would believe if the question were put to you?
I am interested, because I want to see how true these two propositions are made by my opponent. I have taken a back seat so far to hear others people views on the matter. As I expected it produced controversial answers, although the opinion was more divided than I thought. I a priori thought the majority will strongly repudiate the statements. This was not exactly the case with (1) but it was more so with (2) Now I will share my own views
(1) It can be argued that we(humans) all worship the same God with our own different understanding and ways --- however the understanding here is the key, we do not understand God in the same way and in this manner we are giving worship to our understanding of God rather than God itself. An analogy by an Islamic scholar who rejects that Muslims worship the same God is that of a telephone line. Several people might be trying to call me on a line, but only one number is going to be the correct one and directly reach me, the other are wrong numbers. This analogy recently became the theme of a popular Indian religious satire "PK" where an alien from another planet comes to Earth for a visit, but his remote control device that communicates with his spaceship is stolen when he arrives, somebody tells him he needs to ask God where his device is and this becomes the plot of the movie -- the search of an alien for the God that humans worship. He soon realises the ways with which they understand him and worship him all were going to a "wrong number God" They all are thinking they are connecting with God, but they are in fact connecting with some false God who is deceiving them.
This dichotomy of true God and false God is found across several theistic religions. In Judaism it is explicit, this is a 'jealous' God who wants no partners or no equals, and it is a grave sin to worship any other God. All other god's are false. It is doubtful the ancient Jews would not have accepted postmodern universalist argument that the God of Canaanites and other heathen tribes was just their God worshipped in a different way. Hence Jews reject Christ as a partner and equal of God, and this has been the fundamental opposition between Jews and Christians over the millennia. The rejection is a violent rejection, because Christians see the Jews as the one who crucified Christ because they did not recognise him as God.
In Christianity the same theme is articulated as a true religion vs false religion. True religion is only the religion of Christianity, because Jesus is the way, the life and the truth and the only way to God is through Jesus, his son aspect, and there is no other way. This is what hundreds of millions Christians around the world believe. False religion is religions founded by Satan to deceive people and these are all religions that are of Jesus, these are all wrong numbers. Islam rejects Jesus as the way, life and truth, they see Jesus as only one among hundreds of prophets and not as God and do not worship Jesus as Christians do.
In Islam the same theme carries on, but it is more true in spirit to the original God of the Jews. Only one God who has no partners and no equals. They see Christianity as a massive perversion. So does this mean that Muslims worship exactly the same God of the Jews? Well no. The God of the Jews is the truth of God communicated by an old prophet Moses which was relevant for an older time period, but the God of the Muslims is the truth of God communicated by the
latest and final prophet Mohammed This is a fundamental distinction which sets them apart. Mohammed cannot be separated from Islam. Recently, a scientist trying to study Islam objectively, found compiling the Quran and Hadiths, that Mohammed is mentioned some 80% of the times and Allah is only 20% of the times(dont quote me exactly on figures, buts its something like that) Hence, the Muslims regard Islam to have superseded the religion of the Moses and Mohammed's position in Islam is central.
Theologically speaking, however, the Muslims and Jews do seem to be worshipping the same God and their God matches as well in personality as a 'jealous God' or the tyrant God as non-Muslims know him. Yet, if that is the case, why did the Jewish tribes in pre-Islamic Arabia reject Allah as God? If Allah is just the generic name meaning "God" then why do the Muslim scriptures explicitly talk about how the Jews rejected Mohammed's "Allah" and were beheaded enmasse for this insolence. This does not suggest kinship with the Jews at all. The question is resolved by history. Although Allah may have been a generic term for God or may have even been the greatest of Gods of pre-Islamic Arabia, at that time in history Allah had partners, sons and daughters. Its records are still retained in Islamic memory of Manaat, Al-Uzza, Al-Lat. Mohammed's Qureshi tribe worshipped this God. This prior to Mohammed was a Pagan God to the Jews. All Mohammed did was get rid of Allah's partners, and he thought this would make the Jews accept Allah as their God and hence submit to the supremacy of Mohammed's tribe, but this did not fly with the Jews, as they still retained the memory of Allah's pagan past. To them, it was no more valid, than declaring Zeus to be the one true God by removing the rest of the Gods in the Greek pantheon, and then declaring it is the same God as the Jews.
So you can see these are not minor disagreements in doctrine that you can overlook,
they are mutual, fundamental and violent oppositions The rejection of Jesus Christ by the Jews was crucifying him and the rejection of the Jews of Allah was met by them being beheaded. Henceforth, it cannot be said that they are worshipping the same God. The oppositions are irreconcilable. That is my position on this matter.
(2) This one is far easier to refute, so I am not surprised the majority in this thread have rejected this. The original argument put forward in support of this assertion is an absurd argument just that because historically we can trace Islam and Christianity back to Judaism as its source, means that they are all sects of Judaism. However, this is like saying in that case all religions of the world are sects of Shamanism or animism because it was the original prehistorical religion or all races are actually descendent of Africians because Africa was the original home of humans. It is refuted by showing that
there is a clear point of demarcation when one group split from another so to become newly independent group. The factors that affect that split are also important. Christianity is not simply a break off Judaism. Jesus might have been a Jewish rabbi, but he was a Jewsih Rabbi who was influenced by many pagan influences from Platonists, Buddhists, Zoroastrians at the time, hence he was not just merely a reformer within Judaism, he significantly changed Judaism's core beliefs to the extent that he was no longer considered Jewish. The lineage thereof of Christians followed a completely different course to Judaism.
We can argue Mormonism is a sect of Christianity, but Mormonism is widely rejected as a sect of Christianity, because it has fundamentally changed Christian beliefs, introducing a new founder, new scripture and new mythology and rejected core beliefs:
Are Mormons "
Christians" as defined by traditional Christian orthodoxy? The answer to that question is easy and straightforward, and it is "no." Nevertheless, even as the question is clear, the answer requires some explanation.
The issue is clearly framed in this case. Christianity is rightly defined in terms of "traditional Christian orthodoxy." Thus, we have an objective standard by which to define what is and is not Christianity.
We are not talking here about the postmodern conception of Christianity that minimizes truth. We are not talking about Christianity as a mood or as a sociological movement. We are not talking about liberal Christianity that minimizes doctrine nor about sectarian Christianity which defines the faith in terms of eccentric doctrines. We are talking about historic, traditional, Christian orthodoxy.
Is Mormonism Christian?
In summary the Abrahamic religions are therefore not, in my opinion, reconcilable, because they are mutually opposed to one another. The original proponent of the two propositions also made another absurd statement that Tantra Hinduism and and early non-Tantra Hinduism are more opposed to one another than Abrahamic religions are opposed to one another --- the irony here is Tantra Hinduism is not considered a separate religion from the rest of Hinduism, though it certainly considered less orthodox, but there is no clear point of demarcation where it splits of as an independent group because its core beliefs and practices are still very much Hindu. They also exaggerated the opposition between different schools of Hindu philosophy(though are all considered orthodox schools of Hinduism) saying they are more opposed than Abrahamic religions are, though they all share the same core beliefs and identify and accept the authority of the Veda. The irony here is though they considers three recognised separate religions which are mutually and violently opposed to one another as reconcilable, they considers different but complimentary sects or schools of the same religion which have co-existed together, link reverentially to one another and share the same core beliefs, scriptures, practices and eschatology as irreconcilable. I think they have it upside down.