Dr Yitzhaq Feder uncovers the fascinating and unexpected relevance of the sacrificial laws.  Dr. Yitzhaq Feder is a lecturer at the University of Haifa. He is the author of Blood Expiation in Hittite and Biblical Ritual: Origins, Context and Meaning (Society of Biblical Literature, 2011). His most recent book, Purity and Pollution in the Hebrew Bible: From Embodied Experience to Moral Metaphor (Cambridge University Press, 2021), examines the psychological foundations of impurity in ancient Israel.