٤ : ٤٢
يَوۡمَئِذٖ يَوَدُّ ٱلَّذِينَ كَفَرُواْ وَعَصَوُاْ ٱلرَّسُولَ لَوۡ تُسَوَّىٰ بِهِمُ ٱلۡأَرۡضُ وَلَا يَكۡتُمُونَ ٱللَّهَ حَدِيثٗا
On that Day, those who disbelieved and disobeyed the Messenger will wish that the earth were leveled upon them. And they will not be able to hide anything from Allah.
شرح ومعانٍ · ١
- Because they know that they will be held accountable for all their past deeds and they can say nothing but the truth on that Day.