Faith and Nation explores the intricate and evolving relationship between religion and society throughout American history, tracing its influence from pre-colonial indigenous spirituality to the dynamic religious landscape of the 21st century. The book examines the role of religion in shaping the nation's social, political, and cultural development, highlighting key movements such as the Puritan settlement, the Great Awakenings, the rise of evangelicalism, and the emergence of new religious traditions through immigration and secularization.

Chapters delve into the influence of religious leaders in major historical events, including the American Revolution, the Civil War, and the Civil Rights Movement, while also discussing the ideological and theological divisions, such as those surrounding slavery and the "culture wars" of the late 20th century. The book addresses the growing religious diversity brought by Catholic, Jewish, Muslim, Hindu, and Buddhist communities, alongside the rise of secularism and religious disaffiliation in modern America.

Through these narratives, Faith and Nation provides a comprehensive understanding of how religion has been a driving force in America's quest for liberty, social reform, and national identity, ultimately shaping the moral and spiritual fabric of the United States across generations.