Tafseer Ibn Kathir of AL HASYR [13]

لَأَنتُمْ أَشَدُّ رَهْبَةً فِي صُدُورِهِم مِّنَ اللَّهِ ذَلِكَ بِأَنَّهُمْ قَوْمٌ لَّا يَفْقَهُونَ

You [believers] are more fearful within their breasts than Allah . That is because they are a people who do not understand.