3. We have sent it (QUR'AAN) in Arabic (2) that you may understand (3)
2 It should be remembered that besides the Holy O RAAN no other Heavenly Book was rescaled in Arabic because besides the Holy Prophet, no prophet from lineage of Ismail (On whom be peace) appeared in Arabia. All the previous Book were revealed in Hebrew. Presently, this language too is non-existent, but Arabic has remained an international language because of the Holy QUR'AAN. We further learn that Arabic is superior to all the languages because the Holy QUR'AAN was revealed in it. After death, Arabic becomes the language of everybody. The questions in the grave and the reckoning on the Day of Judgement would be conducted in Arabic. The language of the inmates of Paradise would be Arabic. The language of our ، beloved Prophet, was Arabic. In short, Arabic is the spiritual language, while all other languages are physical.
3. Oh people of Arabia through you the rest of mankind understand Arabic, you are everyone's teacher, while the rest are your pupils.