- Galatians: A Commentary on Paul's Letter to the Churches in Galatia (Hermeneia: a Critical and Historical Commentary on the Bible)
- 2 Corinthians 8 and 9: Commentary on Two Administrative Letters of the Apostle Paul (Hermeneia: a Critical and Historical Commentary on the Bible)
- Studies in Paul's Letter to the Philippians
- The "Mithras Liturgy": Text, Translation and Commentary (Studies Und Texte Zu Antike Und Christentum)
- Religion Past and Present, Volume 8: Encyclopedia of Theology and Religion