وَكَذَلِكَ أَنزَلْنَاهُ قُرْآنًا عَرَبِيًّا وَصَرَّفْنَا فِيهِ مِنَ الْوَعِيدِ لَعَلَّهُمْ يَتَّقُونَ أَوْ يُحْدِثُ لَهُمْ ذِكْرًا
[20:113]
And thus have We sent it down an Arabic Quran, and have distinctly set forth therein of threats that they may guard (against evil) or that it may produce a reminder for them.
Thus have We sent this down - an arabic Qur'an - and explained therein in detail some of the warnings, in order that they may fear Allah, or that it may cause their remembrance (of Him).
Thus we have revealed it as a Lecture in Arabic, and have displayed therein certain threats, that peradventure they may keep from evil or that it may cause them to take heed.