﴿ فِى قُلُوبِهِم مَّرَضٌۭ فَزَادَهُمُ ٱللَّهُ مَرَضًۭا ۖ وَلَهُمْ عَذَابٌ أَلِيمٌۢ بِمَا كَانُوا۟ يَكْذِبُونَ ﴾

“In their hearts is disease, and so God lets their disease increase; and grievous suffering awaits them because of their persistent lying.”

In their hearts is a sickness doubt and hypocrisy which ails their hearts debilitating them; and God has increased their sickness with what He has revealed in the Qur’ān since they disbelieve it; and there awaits them a painful chastisement because they used to lie read yukadhdhibūn to imply that they used to call the Prophet of God a liar or yakdhibūn to imply their mendacity when saying ‘we believe’.