"And We have certainly varied in this Qur'an [the warnings] that they might be reminded," meaning: We have clarified for them and informed them that We destroyed the earlier generations so that what befell the previous nations before them, of the punishment of Allah, might not descend upon them (and what
﴿وَلَقَدْ صَرَّفْنَا فِي هَذَا الْقُرْآنِ لِيذكرُوا﴾ أَيْ: بَيَّنَّا لَهُمْ، وَأَخْبَرْنَاهُمْ أَنَّا أَهْلَكْنَا الْقُرُونَ الْأُولَى فَلَا يَنْزِلُ بِهِمْ مَا نَزَلَ بِالْأُمَمِ السَّابِقَةِ قَبْلَهُمْ مِنْ عَذَابِ اللَّهِ (وَمَا