لِئَلَّا يَعْلَمَ أَهْلُ الْكِتَابِ أَلَّا يَقْدِرُونَ عَلَىٰ شَيْءٍ مِنْ فَضْلِ اللَّهِ ۙ وَأَنَّ الْفَضْلَ بِيَدِ اللَّهِ يُؤْتِيهِ مَنْ يَشَاءُ ۚ وَاللَّهُ ذُو الْفَضْلِ الْعَظِيمِ

Li allea yaa’lama ahlul kiteabi allea yaakdiroona aalea shay’in min faadlilleahi va annal faadla bi yadilleahi yoo’teehi man yasheau, vaalleahu zool faadlil aazeem(aazeemi).

It is because the People of the Book did not know that they had no power over the generosity (light) of Allah, and that His Generosity is entirely in His Power, and He gives it to whom He wills. And Allah is the Owner of Mighty Generosity.