شَهْرُ رَمَضَانَ الَّذِي أُنزِلَ فِيهِ الْقُرْآنُ هُدًى لِّلنَّاسِ وَبَيِّنَاتٍ مِّنَ الْهُدَىٰ وَالْفُرْقَانِ

This verse highlights the special status of Ramadan as the month in which the Quran was revealed. It describes the Quran as serving three functions: guidance for humanity, clear proofs of that guidance, and a criterion to distinguish between right and wrong. The revelation of the Quran in this month gives Ramadan its special significance and is the reason for fasting during this time. This teaching emphasizes the centrality of divine guidance in human life and the importance of having clear standards for distinguishing truth from falsehood. It connects the physical discipline of fasting with the spiritual nourishment of revelation.