De Ore Domini: Preacher and Word in the Middle Ages is a volume of thirteen essays, constituting a series of chapters in the history of preaching. The essays present a diversity of historical periods, audiences, and methodologies. Ranging in time from the 700s to 1511, they cover a space that stretches from Johannes Herolt’s Germany to Ramon Llull’s Mallorca, from Bede’s England to the Italy of Bernadino of Siena and Egidio da Viterbo. As the title suggests, the mouth of the Lord spoke with many voices, and the contributors to this volume provide important examinations of individual preachers, genres, and sources of sermons. Commentary and analyses are made of materials from the symbolic and allegorical to the practical and dogmatic, and even the educational. Further, the essays discuss how sermons were used at different periods and how they addressed different audiences. The studies illustrate new methods and concerns in the field of sermon studies, and, collectively, they point to a central problem in the historiography of sermons and preaching. The collection offers insights into modern approaches to studying medieval sermons and will be of interest to scholars of medieval religion, preaching, and culture.