Though hardly known in the modern era, the Glossa Ordinaria was the most influential biblical commentary of the Middle Ages. Based on the Latin text of the edition printed by Adolph Rusch, this first English translation of the Glossa on Matthew presents a wealth of patristic and medieval insight on the first book of the New Testament, elucidating the significance of Christ’s advent, teaching, and saving work as the fulfillment of the Old Testament’s prophecies and divine promises.