Dr. Mustafa Khattab, the Clear Quran - Surah Al-Anbya, ayah 39

Translation of Surah Al-Anbya, ayah 39 (21:39)

لَوۡ يَعۡلَمُ ٱلَّذِينَ كَفَرُواْ حِينَ لَا يَكُفُّونَ عَن وُجُوهِهِمُ ٱلنَّارَ وَلَا عَن ظُهُورِهِمۡ وَلَا هُمۡ يُنصَرُونَ ٣٩
If only the disbelievers knew that a time will come when they will not be able to keep the Fire off their faces or backs, nor will they be helped.