Nienke M. Vos, Ph.D. (Utrecht, 2003), is tenured Assistant Professor of Patristics and the Literature of Early Christianity, Vrije Universiteit Amsterdam. She has published on hagiography and was editor, with Willemien Otten, of Demons and the Devil in Ancient and Medieval Christianity (Brill, 2011). Albert C. Geljon, Ph.D. (Leiden, 2000), teaches classical languages at the Christelijk Gymnasium Utrecht. His research focuses on Philo of Alexandria and his influence on patristic authors. With David Runia he recently published Philo of Alexandria. On Planting. Introduction, Translation, and Commentary (Brill, 2019).