My point was that they are different religions, absolutely, but they believe in the same God. They believe different things about what God did, and how He asks

My point was that they are different religions, absolutely, but they believe in the same God. They believe different things about what God did, and how He asks us to behave. They differ to their core, but still, they believe in the same God. > Why are these three religions special? I didn't claim they were a complete set (they're not, you have to include Mormonism and other non-trinitarian religions that believe in Christ, then to a lesser extent you have Baha'i (which it turns out is literally answering this question) and the Yazidi faith, and probably more). Once you get to monotheistic religions that aren't descended from Abraham, it's a more philosophical question. If there were a tribe in South America that believed in a god that revealed himself to Atik and chose the Inca as his chosen people, on the other hand, would obviously be believing in a different god. Polytheistic or pantheistic (nature is God) faiths are quite clearly not believing in the same god.