This article presents selected remarks that St Augustine made on the late-classical Christian community of the Church in Roman. Looking at the writings of the bishop of Hippo we can analyse a certain section of Roman society in the African province, especially the question of the confessional relations in the Church structures of those days. However, this is not a complete image and we are able to deal only with some selected topics here. This is due to the fact that the collection of the Augustine sources is very complex and despite the numerous studies on this subject, new doubts and questions still arise. The paper contains a study of the African clergy, the liturgical rite, the laity in general and its ecclesiastical functions as well as the religious tensions caused by heresies and schisms. Undoubtedly the subject itself requires further research, yet the conclusions presented in the article allow us to say that despite the economic problems in the third century, the crises, the usurpations of power and, above all, the heresies, the schisms and the opportunistic conversions, the African Church in the time of St. Augustine was developing well. The charismatic bishop of Hippo was doing his best to tackle all these difficulties with the support of his clergy.