Book excerpt: Ontologies of Violence provides a new paradigm for understanding the concept of violence through comparative interpretations of French philosopher Jacques Derrida, philosophical theologians in the Mennonite pacifist tradition, and Grace M. Jantzen’s feminist philosophy of religion. By drawing out and challenging the remarkably similar priorities shared by its three sources, and by challenging the assumption that differences necessarily lead to displacement, Ontologies of Violence provides a critical theory of violence by treating it as a diagnostic concept that implies the violation of value-laden boundaries.