Repetition in the Quran — Emphasis Not Redundancy
terms
Level: intermediate
rhetorical
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فَبِأَيِّ ءَالَآءِ رَبِّكُمَا تُكَذِّبَانِ
— الرحمن 13
Principle: Repetition in the Quran is purposeful — not a flaw or redundancy.
Purposes: (1) Confirmation: "Which of your Lord's favors will you deny?" (31 times in Ar-Rahman). (2) Magnification: "Al-Haqqa, what is Al-Haqqa?" (3) Grief: "Woe that day to deniers" (10 times). (4) Prophet stories repeated with different angles across surahs.
Source: Al-Zarkashi (3/8); Al-Suyuti (3/263)
Question: Why is "which favors will you deny" repeated 31 times?
Answer: To affirm each blessing individually after mentioning it — as if asked about each one specifically: will you deny this?