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.
Panarion
The first section of the first of the three books contains an account of 20 heretical sects before the time of Jesus; the remaining portion is occupied with the description of 60 sects of Christianity. However, the total number of sects is actually 77, because three of the first 20 are general names: Hellenism, Samaritanism, and Judaism. In the editions of the "Panarion", each heresy is numbered in order; hence it is customary to quote the "Panarion" as follows: Epiphanius, "Haer." N [the number of the heresy].