Rhetorical skills are important for preachers because the word of God is spread by speech. From the beginning of Christianity and Saint Augustine, it has been emphasized that eloquence can help preachers reach the faithful. The paper analyses and compares sermons of the two largest Christian faiths: Roman-Catholic and Protestant, to determine whether there are significant rhetorical differences between their preachers. Descriptive rhetorical analysis of sermons was conducted, which included the structure, style (choice of words and figures), and speech delivery (use of nonverbal and prosodic signs during sermons). The analysis showed that there are certain rhetorical differences between preachers, but they are conditioned more by the rhetorical skills of an individual preacher than religious affiliation.