New Seeds of Contemplation

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

The Seven Storey Mountain

The Cost of Discipleship

The Last of the Fathers: Saint Bernard of Clairvaux and the Encyclical Letter Doctor Mellifluus

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

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

Contemplative Prayer

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

Thoughts In Solitude

The New Man

Learning Theology with the Church Fathers

Mystics and Zen Masters

The Gnostic Bible: Revised and Expanded Edition

The Silent Life

On Guard: Defending Your Faith with Reason and Precision

Seasons of Celebration: Meditations on the Cycle of Liturgical Feasts

Beyond Belief: The Secret Gospel of Thomas

When the Trees Say Nothing: Writings on Nature