The Mercersburg theology was a protest against many of the Puritan tendencies dominant in American religion in the mid-nineteenth century. Its spokesmen emphasized the catholic heritage in Protestantism and fostered the ecumenical hope of a reunion of Protestantism, Roman Catholicism, and Orthodoxy. They presented a high church sacramental conception, as opposed to the predominant revivalistic, individualistic, and sectarian habit of mind. The movement...