Languages have their own distinctive styles of argumentation. It seems some languages like Arabic and Persian have a preference for using the “oral” features of parataxis, formulaicity and repetition as persuasive devices in argumentation. The purpose of this article is first to examine these “oral” characteristics in Persian argumentation, and then to tie together the two areas of research: the study of orality and the study of metadiscourse. The article claims that these oral characteristics in Persian are means of gaining rhetorical effectiveness. Therefore, they should be considered as metadiscourse devices used to create a bond between writer and reader.