Hinduism and other religions and medieval times. Islam is a strictly monotheistic religion in which the supreme deity is Allah ( : see God in Islam), the last Islamic prophet being Muhammad ibn Abdullah, whom Muslims believe delivered the Islamic scripture, the Qur'an. Hinduism mostly shares common terms with the other Indian religions, including Buddhism, Jainism and Sikhism. Islam shares common characteristics with Abrahamic religions–those religions claiming descent from the prophet Abraham–being, from oldest to youngest, Judaism, Christianity, Islam. The Qur'an is the primary Islamic scripture. Muslims believe it to be the verbatim, uncreated word of Allah. Second to this in religious authority, and
Split of Christianity and Judaism Jewish-Christian and Rabbinic movements from the mid-to late second century CE to the fourth century CE. Philip S. Alexander characterizes the question of when Christianity and Judaism parted company and went their separate ways as "one of those deceptively simple questions which should be approached with great care." According to historian Shaye J. D. Cohen, "the separation of Christianity from Judaism was a process, not an event," in which the church became "more and more gentile, and less and less Jewish." According to Cohen, early Christianity ceased to be a Jewish sect when it ceased to observe Jewish practices, such