Although many studies have been devoted to Augustine's City of God and its most important theme, viz. the antithesis between the civitas Dei and the terrena civitas, until now no consensus has been reached concerning the sources of this doctrine. Was Augustine decisively influenced by Manichaeism, by (Neo)Platonism, the Stoa or Philo, by the Donatist Tyconius? Or should we look in another direction and refer to preceding Christian, Jewish, and especially to archaic Jewish-Christian traditions? This lucidly written books opens with a survey of the research carried out so...