Satan
Each sect of Judaism has its own interpretation of Satan's identity. Conservative Judaism generally rejects the Talmudic interpretation of Satan as a metaphor for the "yetzer hara", and regard him as a literal agent of God. Orthodox Judaism, on the other hand, outwardly embraces Talmudic teachings on Satan, and involves Satan in religious life far more inclusively than other sects. Satan is mentioned explicitly in some daily prayers, including during Shacharit and certain post-meal benedictions, as described in Talmud and the Jewish Code of Law. In Reform Judaism, Satan is generally seen in his Talmudic role as a metaphor for the "yetzer hara" and the symbolic representation of innate human qualities such as selfishness.
Origins of Rabbinic Judaism
Although the Rabbis traced their origins to the Pharisees, Rabbinic Judaism nevertheless involved a radical repudiation of certain elements of Pharisaism—elements that were basic to Second Temple Judaism. The Pharisees had been partisan. Members of different sects argued with one another over the correctness of their respective interpretations, see also Hillel and Shammai. After the destruction of the Second Temple, these sectarian divisions ended. The term "Pharisee" was no longer used, perhaps because it was a term more often used by non-Pharisees, but also because the term was explicitly sectarian. The Rabbis claimed leadership over all Jews, and added to the Amidah the "birkat haMinim" (see Council of Jamnia), a prayer which in part exclaims, "Praised are You O Lord, who breaks enemies and defeats the arrogant," and which is understood as a rejection of sectarians and sectarianism. This shift by no means resolved conflicts over the interpretation of the Torah; rather, it relocated debates between sects to debates within Rabbinic Judaism.