Cold-Case Christianity: A Homicide Detective Investigates the Claims of the Gospels

The Cost of Discipleship

Zealot: The Life and Times of Jesus of Nazareth

Uncovering Ancient Footprints: Armenian Inscriptions and the Pilgrimage Routes of the Sinai

The Sabbath

Jesus: The Incarnation of the Word

Secret Groups in Ancient Judaism

The Gnostic Bible: Revised and Expanded Edition

Beyond Belief: The Secret Gospel of Thomas

Becoming Divine: An Introduction to Deification in Western Culture

What It Means to Be Protestant: The Case for an Always-Reforming Church

A Concise History of the Catholic Church (Revised Edition)

Signs of Life: 40 Catholic Customs and Their Biblical Roots

On Heaven and Earth: Pope Francis on Faith, Family, and the Church in the Twenty-First Century

Challenging the Traditional Interpretations of Justification by Faith, Part 1