The Studia Philonica Annual is a scholarly journal devoted to the study of Hellenistic Judaism, particularly the writings and thought of the Hellenistic-Jewish writer Philo of Alexandria (circa 15 B.C.E. to circa 50 C.E.). This volume includes a special section on Philo's De decalogo. Article topics include intermarriage, sexual ethics, Neopythagoreanism, Numenius of Apamea, divine nature and agency, and Franz Rosenweig.