The earliest rabbinic commentary to the Book of Leviticus, the Sifra, is generally considered an exemplum of Rabbi Akiva's intensely scriptural school of interpretation. But, Azzan Yadin-Israel contends, the Sifra commentary exhibits two distinct layers of interpretation that bring dramatically different assumptions to bear on the biblical text: earlier interpretations accord with the hermeneutic principles associated with Rabbi Ishmael, the other...