The problem is the theology doesn’t match, there is no common god of Christians, Jews, and Muslims because Christians believe Jesus is god and divine and neither of the others do meaning their god’s identity is different. Christians and Jews believe the Quran contains lies, Muslims and Jews believe the Christian bible contains lies, and Christians and Muslims believe the Jewish bible contains lies. Hell even within each there are sects that believe different things about god, like Christians who believe they are saved by being chosen, by faith alone, or by faith and works. These are unreconcilable differences that change based on their beliefs about their god.
Religions when formed usually branch from an existing religion (e.g. Christianity started as a Jewish apocalyptic cult, Mormon branches from that, etc), but change the theology enough so that the old clergy/church is no longer valid wrt the new faith position.
Bunch of heathens following Ben Reilly /s
The problem is the theology doesn’t match, there is no common god of Christians, Jews, and Muslims because Christians believe Jesus is god and divine and neither of the others do meaning their god’s identity is different. Christians and Jews believe the Quran contains lies, Muslims and Jews believe the Christian bible contains lies, and Christians and Muslims believe the Jewish bible contains lies. Hell even within each there are sects that believe different things about god, like Christians who believe they are saved by being chosen, by faith alone, or by faith and works. These are unreconcilable differences that change based on their beliefs about their god.
Religions when formed usually branch from an existing religion (e.g. Christianity started as a Jewish apocalyptic cult, Mormon branches from that, etc), but change the theology enough so that the old clergy/church is no longer valid wrt the new faith position.