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.
List of Dune religions
These Jewish communities are led by rabbis, at least some of whom have working relationships with the Bene Gesserit. "Heretics of Dune" suggests that Jewish thought may have influenced the development of Bene Gesserit philosophy. The Jewish community described in the novels defines itself as part of "Secret Israel", which, in conjunction with the sparse historical information given in the novel, suggests that the Jewish people had decided to conceal themselves to follow their religion and avoid the recurrent atrocities of their past. Long ago, the Bene Gesserit and the hidden Jewish communities came to an understanding of sorts: the Bene Gesserit would provide aid to hidden Jews if they were ever threatened, and help hide the fact that the Jewish religion survives in secret; in return, if ever a Bene Gesserit acolyte is lost and threatened on an isolated planet, the local Jewish community give her aid and shelter. A simple arrangement, but one which endured between both groups for millennia. Moreover, the Torah and Talmudic Zabur are listed in Appendix II of "Dune" as having contributed to the Orange Catholic Bible; the appendix also notes that these books were preserved on Salusa Secundus.