The history of Islam going back to the beginning suggests that Muslims saw the God they worshiped as the same worshiped by Jews and Christians in early Arabia and that the common heritage to Abraham tied it together. Yes, the concept of God varies quite a bit between the three religions, but none believes that the other two worships anything other than a single creator God to whom adoration is due. Even within Christianity the concept of God can vary quite a bit. Unitarians, for example, reject the Trinity and generally see Jesus as only human but inspired by God. That is not so different from the Muslim view of Jesus. |
| OPs question is like rhetorical or a riddle. Logically the question presumes all three religions are "correct" in a sense, which cannot be the case. Thus, the question should be if each religion BELIEVES they worship the same god, which answer is obviously yes. |