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.
Sect of Skhariya the Jew
In the early 19th century, a number of communities appeared in Tula, Voronezh and Tambov, which followed Jewish traditions and halacha. They were also called "zhidovstvuyuschiye" and were persecuted severely in the times of Nicolas I. Since the beginning of the 20th century, they have been also called "iudeystvuyuschie", from "iudeystvo", a neutral term for the Jewish religion. Now they are generally considered a part of Jewish people (although with no real Israelite descent) and some of them have immigrated to Israel. These groups, however, are not linked to the teaching of Skhariya.