Al-Anbya 21:37

وَمَا جَعَلْنَا لِبَشَرٍ مِّن قَبْلِكَ الْخُلْدَ ۖ أَفَإِن مِّتَّ فَهُمُ الْخَالِدُونَ

And We did not grant to any man before you eternity [on earth]; so if you die - would they be eternal?

كُلُّ نَفْسٍ ذَائِقَةُ الْمَوْتِ ۗ وَنَبْلُوكُم بِالشَّرِّ وَالْخَيْرِ فِتْنَةً ۖ وَإِلَيْنَا تُرْجَعُونَ

Every soul will taste death. And We test you with evil and with good as trial; and to Us you will be returned.

وَإِذَا رَآكَ الَّذِينَ كَفَرُوا إِن يَتَّخِذُونَكَ إِلَّا هُزُوًا أَهَـٰذَا الَّذِي يَذْكُرُ آلِهَتَكُمْ وَهُم بِذِكْرِ الرَّحْمَـٰنِ هُمْ كَافِرُونَ

And when those who disbelieve see you, [O Muhammad], they take you not except in ridicule, [saying], "Is this the one who insults your gods?" And they are, at the mention of the Most Merciful, disbelievers.

وَيَقُولُونَ مَتَىٰ هَـٰذَا الْوَعْدُ إِن كُنتُمْ صَادِقِينَ

And they say, "When is this promise, if you should be truthful?"

لَوْ يَعْلَمُ الَّذِينَ كَفَرُوا حِينَ لَا يَكُفُّونَ عَن وُجُوهِهِمُ النَّارَ وَلَا عَن ظُهُورِهِمْ وَلَا هُمْ يُنصَرُونَ

If those who disbelieved but knew the time when they will not avert the Fire from their faces or from their backs and they will not be aided...

بَلْ تَأْتِيهِم بَغْتَةً فَتَبْهَتُهُمْ فَلَا يَسْتَطِيعُونَ رَدَّهَا وَلَا هُمْ يُنظَرُونَ

Rather, it will come to them unexpectedly and bewilder them, and they will not be able to repel it, nor will they be reprieved.