فَلَنُذِيقَنَّ ٱلَّذِينَ كَفَرُوا۟ عَذَابًا شَدِيدًا وَلَنَجْزِيَنَّهُمْ أَسْوَأَ ٱلَّذِى كَانُوا۟ يَعْمَلُونَ

Therefore We will most certainly make those who disbelieve taste a severe punishment, and We will most certainly reward them for the evil deeds they used to do.