EN
The article deals with a problem of using the theory of a speech act in analysis of Christian sacraments in religious studies. Author finds the concept useful for many reasons. Mostly, religious studies are free of problem oftruth, because the theory tells only about felicity of creating beliefs or not. According to S. Tambiah, it lets us analyse the scale of magic in religious rituals, also Christian, like sacramental practice. In the article differentsacramental theologies, like Catholicism, Orthodox and different Protestant religions (Calvinism, Lutheranism) are looked at in terms of illocutionary power of words used during rituals and their effectiveness. It lets usillustrate the historical process of decreasing of the magical element in interpretation of basic Christian rituals.