The mitzvah of sanctifying the Kohen with distinct roles and obligations derived from heredity is morally incompatible with the principle of egalitarianism. The mitzvah of sanctifying the Kohen The commandment to sanctify the progeny of Ahron (Hebrew "מצוות קידוש זרעו של אהרן") is a commandment based in the Hebrew Bible, and developed in rabbinical teaching that requires believers in Judaism to sanctify their priests ("kohanim") in various ways. These include assisting him to abstain from any prohibitions in the Law that apply to him, and by affording him first rights in areas relating to holiness and the service of God. In the enumeration of Maimonides this
Bar and Bat Mitzvah siddur. In some Modern Orthodox circles, bat mitzvah girls will read from the Torah and lead prayer services in a women's tefillah. Rabbi Moshe Feinstein, a prominent Orthodox "posek," has ruled that bat mitzvah celebrations are permissible, but should not be held in a synagogue, because then they would be construed as imitating Reform and Conservative customs; in any case, they do not have the status of seudat mitzvah. Rabbi Ovadiah Yosef holds that it is a seudat mitzvah. There were occasional attempts to recognize a girl's coming of age in eastern Europe in the 19th and 20th centuries, the