"A work of keen insight, great learning, and ecumenical generosity.
- Robert Louis Wilken, First Things
"[Pelikan's] book is learned, indeed massively so, yet because of the lucidity of its prose it is accessible to the general reader.
- Luke Timothy Johnson,Washington Post Book World
"Indispensable. . . . An achievement unlikely to be surpassed.
- Donald K.McKim, Theological Studies