EN
In the domain of a religious language, choices and valorizations are always made from the point of view of symbols and carriers of a particular culture and a all times are a declaration of ideological appurtenance. The article presents the process of formation of the Church language first as a personal norm of saint Cyril, then its transformation into a social norm and afterwards the recognition of Church Slavonic as a determinant of indigenousness. The most important thing in using a religious language is not complete and literal understanding of the message, but the certitude of participation in the traditional culture. That is why the attempts to modernize the cult in the name of comprehension of the message is in most cases ineffective.