Thomas Aquinas's Summa Theologiae: A Guide and Commentary

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

Zealot: The Life and Times of Jesus of Nazareth

Thomas Aquinas on God and Evil

The Thought of Thomas Aquinas

The Cost of Discipleship

The Reality of God and the Problem of Evil

The New Testament in Its World: An Introduction to the History, Literature, and Theology of the First Christians

Thinking About God

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

Thomas Aquinas: A Very Brief History

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

Learning Theology with the Church Fathers

Taking God Seriously: Two Different Voices

The Gnostic Bible: Revised and Expanded Edition

Beyond Belief: The Secret Gospel of Thomas

Becoming Divine: An Introduction to Deification in Western Culture

Signs of Life: 40 Catholic Customs and Their Biblical Roots

Saint Athanasius, the Father of Orthodoxy