Repetition is a linguistic feature that exists in all languages, and represents different purposes, rhetorical, emphatic, or otherwise. A problematic issue arises when the rhetorical question “Then which of the favours of your Lord will you deny? In Surat AL Rahman repeated many times in Surat Al Rahman. This paper deals with this specific area as far as the repetition of rhetorical question “Then which of the favours of your Lord will you deny? Is concerned. The speech act theory (1962) was applied to investigate realization of speech The repetition of rhetorical question “Then which of the favours of your Lord will you deny? In Surat AL Rahman. The analytical method is used while gathering of data. The paper highlights the Qur’an’s aims and the effects of repetition in Surat Al Rahman. The paper also elucidates the purpose of the repetition in Surat Al Rahman. This paper elucidates that This verse is repeated 31 times in the surah, once after each description of Allah’s blessings and punishment as well. The speech in surah Ar-Rahman is namely repetition. The reason used of speech in surah Ar-rahman namely faith, laws of justice, man and jinn, hell and favors heaven.
Keywords: Speech, Surat AL Rahman, repetition, rhetorical question