“Eminently readable and frequently brilliant.” — Christianity Today
“A significant contribution to the historiographical wrangling over the character of American evangelism.” — American Historical Review
“A first-rate book that deserves close scholarly attention.” — Review and Expositor
“Draws fascinating connections between business and religion throughout.” — Business History Review
“American church history fans will relish this work.” — Library Journal
“In this significant, thought-provoking work, Gloege traces the rise of Evangelicalism after the Civil War.” — CHOICE
“Deftly argued, extensively researched, and with brilliant insight, Guaranteed Pure offers a major contribution to our understanding of American religion.” — Church History and Religious Culture
“May spark a new trend in American religious studies. . . . Add[s] significantly to our understanding and also speak[s] to our present situation.” — The Annals of Iowa
“A valuable contribution to the story of the interactions between Protestant evangelicalism and capitalism in the United States.” — Journal of American History
“Offers [insights] on the social and economic contexts that shaped both institutional and personal religious identity since the end of the nineteenth century.” — Religious Studies Review