History

Ulfilas Apostle of the Goths

A Momentary Glory

Words of Our Mouth, Meditations of Our Heart

Poems, 1957–1967

The Beginnings of Christianity

1,500 Years of Theology and Literature on Earth

Lives of the Saints

An American Religious Movement: A Brief History of the Disciples of Christ

The Early Years of Christianity: The Apostolic Era

The Creeds of Christendom: Volume 1 The History of Creeds

The Counter-Reformation in Scotland

Great Britain and the Holy See 1792–1806

Stories of the Saints

History and Silence

Pocket Dictionary of the Reformed Tradition

From Politics to the Pews

Mircea Eliade: Autobiography

Explorations in Asian Christianity

In Search of Ancient Roots

Introduction to World Christian History