With language we name and define all things, and by studying our use of language, rhetoricians can provide an account of these things and thus of our lived experience. The concept of the sacred, however, raises the prospect of the existence of phenomena that transcend the human and physical and cannot be expressed fully by language. The sacred thus reveals limitations of rhetoric. Featuring essays by some of the foremost scholars of rhetoric working today, this wide-ranging collection of theoretical and methodological studies takes seriously the possibility of the sacred and the challenge it poses to rhetorical inquiry. The contributors engage with religious rhetorics—Jewish, Jesuit, Buddhist, pagan—as well as rationalist, scientific, and postmodern rhetorics, studying, for example, divination in the Platonic tradition, Thomas Hobbes’s and Walter Benjamin’s accounts of sacred texts, the uncanny algorithms of Big Data, and Hélène Cixous’s sacred passages and passwords. From these studies, new definitions of the sacred emerge—along with new rhetorical practices for engaging with the sacred. This book provides insight into the relation of rhetoric and the sacred, showing the capacity of rhetoric to study the ineffable but also shedding light on the boundaries between them. In addition to the editors, the contributors to this volume include Michelle Ballif, Jean Bessette, Trey Conner, Richard Doyle, David Frank, Daniel M. Gross, Kevin Hamilton, Cynthia Haynes, Steven Mailloux, James R. Martel, Jodie Nicotra, Ned O’Gorman, and Brooke Rollins.