﴿ يَخَافُونَ رَبَّهُم مِّن فَوْقِهِمْ وَيَفْعَلُونَ مَا يُؤْمَرُونَ ۩ ﴾

“they fear their Sustainer high above them, and do whatever they are bidden to do.”

They that is the angels fear yakhāfūna is a circumstantial qualifier referring to the person governing the verb yastakbirūna ‘they are not arrogant’ their Lord from above them min fawqihim is a circumstantial qualifier referring to the suffixed pronoun -hum of fawqihim in other words they fear their Lord being High above them with the power to subjugate and they do what they are commanded to do.