sentences:  Circumcision is commonly practiced in the Jewish and Islamic faiths and in Coptic Christianity and the Ethiopian Orthodox Church and the Eritrean Orthodox Tewahedo Church.Circumcision is very important to most branches of Judaism, with over 90% of male adherents having the procedure performed as a religious obligation.The basis for its observance is found in the Torah of the Hebrew Bible, in Genesis chapter 17, in which a covenant of circumcision is made with Abraham and his descendants.