Prof. Jonathan Klawans is Professor of Religion and Jewish Studies at Boston University. He holds a Ph.D. from Columbia University and an M.A. in Hebrew and Judaic Studies from New York University. He is the author of Heresy, Forgery, Novelty: Condemning, Denying, and Asserting Innovation in Ancient Judaism (Oxford 2019); Josephus and the Theologies of Ancient Judaism (Oxford 2012); Purity, Sacrifice, and the Temple (Oxford 2005); Impurity and Sin in Ancient Judaism (Oxford 2000). He is co-editor (with Lawrence M. Wills) of the Jewish Annotated Apocrypha. (Oxford 2020), and co-editor (with Angela Kim Harkins) of the Journal of Ancient Judaism.