في قُلوبِهِم مَرَضٌ فَزادَهُمُ اللَّهُ مَرَضًا ۖ وَلَهُم عَذابٌ أَليمٌ بِما كانوا يَكذِبونَ

In their hearts is disease, so Allah has increased their disease; and for them is a painful punishment because they [habitually] used to lie.