Judaism
There are some movements that combine elements of Judaism with those of other religions. The most well-known of these is Messianic Judaism, a religious movement, which arose in the 1960s, that incorporates elements of Judaism with the tenets of Christianity. The movement generally states that Jesus is the Jewish Messiah, that he is one of the Three Divine Persons, and that salvation is only achieved through acceptance of Jesus as one's savior. Some members of the movement argue that Messianic Judaism is a sect of Judaism. Jewish organizations of every denomination reject this, stating that Messianic Judaism is a Christian sect, because it teaches creeds which are identical to those of Pauline Christianity.
Origins of Rabbinic Judaism
Orthodox Judaism does not accept the scholarly view that Rabbinic Judaism came into being in the post-Second Temple era. Rather, it sees the Judaism of this period as continuing organically from the religious and cultural heritage of the Israelites, stemming from the Revelation at Sinai onwards. According to this view, while the title "Rabbi" was not used earlier, Moses was the first rabbi (and is commonly referred to by Orthodox Jews as "Moses our Rabbi"), with the knowledge and laws received at Sinai being passed down from teachers to students through the era of the Judges, and the prophets (most of whom are seen as the "rabbis" of their time), through the Sages of the late Second Temple period, and continuing until today.