2011. “Eschatology in 2 Clement.” Pages 629-643 in Eschatology of the New Testament and Some Related Documents. Edited by Jan G. van der Watt. Tübingen: Mohr.

2010. “The Corpus of the Apostolic Fathers.” Pages 1-6 in The Apostolic Fathers: An Introduction. Edited by W. Pratscher. Waco, TX: 2010.

2010. “The Second Epistle of Clement.” Pages 71-90 in The Apostolic Fathers: An Introduction. Edited by W. Pratscher. Waco, TX: 2010.

2010. “Quadratus.” Pages 181-195 in The Apostolic Fathers: An Introduction. Edited by W. Pratscher. Waco, TX: 2010.

2009. “James, Brother of Jesus.” Pages 646-47 in RPP 6.

2009. “Glossolalia (Speaking in Tongues). II. New Testament.” Page 446 in RPP 5..

2003. “Kingdom of God.” Pages 125-127 in The Encyclopedia of Christiantiy. Vol. 3. Leiden: Brill.

2001. “Holy Spirit 1. Biblical Data.” Pages 577-580 in The Encyclopedia of Christianity. Vol. 2. Leiden: Brill.