وَكَذٰلِكَ أَنزَلناهُ قُرآنًا عَرَبِيًّا وَصَرَّفنا فيهِ مِنَ الوَعيدِ لَعَلَّهُم يَتَّقونَ أَو يُحدِثُ لَهُم ذِكرًا

We revealed this Quran in Arabic, and We diversified the warnings in it, to foster righteousness or serve as a reminder for them.