Through close examination of ancient, medieval, and modern Lives of the saints, Ann W. Astell demonstrates how the historical transformation of hagiography as a genre correlates with similar changes in biblical studies.Christian hagiography flourished from the fourth to the fifteenth centuries, illuminating the gospel through the overlapping forms of exempla and vita. Originally, the Lives of the saints were understood as hermeneutical extensions of the Bible—God authors the saint, just as God authors the divinely inspired scriptures. During the medieval period, a sense of dual authorship between God and the cooperating saint developed, paralleling the Scholastic impulse to assign greater agency to the human writers of scripture. Then, in the sixteenth century, powerful new anxieties about historical truth pushed hagiography aside for biography, its successor.Drawing on her expertise in the history of Christianity and biblical exegesis, Astell convincingly shows how this radical shift in hagiography’s status—the loss of the literal, allegorical, tropological, and anagogical senses of the Lives—serves as a bellwether for modern biblical reception.