In 1588 Rabbi Elazar founded the "Sukat Shalom" movement, which acted to arouse in Jews devotion to religion. His Sefer Haredim blends a halakhic enumeration of the 613 commandments with Kabbalist ethics and is one of the central works of its genre.[1]
Rabbi Elazar's best known Book, the Sefer Haredim (Hebrew: ספר חרדים), is a famous discussion of the 613 commandments and is one of the main works of Jewish deontology. It was printed after his death in 1600. Its arrangement differs from other similar books:[2] First, the commandments are arranged according to the human body and/or the time on which they depend in their observance; second, the work does not maintain a single count of the commandments but rather lists these according to the opinion of several Rishonim.