قُرۡاٰنًا عَرَبِيًّا غَيۡرَ ذِىۡ عِوَجٍ لَّعَلَّهُمۡ يَتَّقُوۡنَ
The Qur’an is in the Arabic language (which is the most comprehensive, lucid and communicative of all the languages) in which there is not even a bit of crookedness so that they may adopt Godwariness.