الآية رقم (161-162) - إِنَّ الَّذِينَ كَفَرُوا وَمَاتُوا وَهُمْ كُفَّارٌ أُولَئِكَ عَلَيْهِمْ لَعْنَةُ اللّهِ وَالْمَلآئِكَةِ وَالنَّاسِ أَجْمَعِينَ * خَالِدِينَ فِيهَا لاَ يُخَفَّفُ عَنْهُمُ الْعَذَابُ وَلاَ هُمْ يُنظَرُونَ

(161-162) - (Indeed, those who disbelieve and die while they are disbelievers - upon them will be the curse of Allah and of the angels and the people, all together,  Abiding eternally therein. The punishment will not be lightened for them, nor will they be reprieved)

Those who insisted on their disbelief and died while they are misguided, unrepentant, and did not return back from their error nor repaired what they have corrupted, those will not be forgiven nor the mercy of Allah (swt) would reach them. That is because Allah (swt) curse them (expel them from His mercy), as well as his angels and all the people do. Why? Because they have been given all the opportunities and wasted them all.