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

And thus We have sent it down as an Arabic Qur'an and have diversified therein the warnings that perhaps they will avoid [sin] or it would cause them remembrance.