This article is an analysis of a critical examination of Cybele's worship in De Civitate Dei written by St Augustine. A bishop of Hippo gave Cybele his close attention, because on the background of other gods' cults, her cult appears to be an especially destructive demonolatry. ”Magna deorum Mater”, a title of hers is used to hint readers at some kind of sweeping generalization about a pagan religion. Cybele's worship clashed with generally accepted ethical rules. Augustine exposes it to raise an issue of holiness in the pagan religion. It appears that the pagans had a higher morality than the ethnical religion required it from worshippers. To illustrate a destroying power of Cybele St Augustine reminds of monstrous sacrifices which were ma...