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

The Catholicity of the Church

The Cost of Discipleship

Church and Society: The Laurence J. McGinley Lectures, 1988-2007

Zealot: The Life and Times of Jesus of Nazareth

The Priestly Office: A Theological Reflection

The Pilgrim's Progress: From This World to That Which is to Come

Free Will vs. Predestination: Calvinism and Arminianism Explained

The Holocaust, Never to be Forgotten: Reflections on the Holy See's Document We Remember

Learning Theology with the Church Fathers

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

Signs of Life: 40 Catholic Customs and Their Biblical Roots

Saint Athanasius, the Father of Orthodoxy

Jesus and the Dead Sea Scrolls: Revealing the Jewish Roots of Christianity

Theology of the New Testament: A Canonical and Synthetic Approach