بِئْسَمَا ٱشْتَرَوْا۟ بِهِۦٓ أَنفُسَهُمْ أَن يَكْفُرُوا۟ بِمَآ أَنزَلَ ٱللَّهُ بَغْيًا أَن يُنَزِّلَ ٱللَّهُ مِن فَضْلِهِۦ عَلَىٰ مَن يَشَآءُ مِنْ عِبَادِهِۦ ۖ فَبَآءُو بِغَضَبٍ عَلَىٰ غَضَبٍ ۚ وَلِلْكَـٰفِرِينَ عَذَابٌ مُّهِينٌ Qur’an Al-Baqara (2:90)Bisama ishtaraw bihi anfusahum an yakfuroo bima anzala Allahu baghyan an yunazzila Allahu min fadlihi AAala man yashao min AAibadihi fabaoo bighadabin AAala ghadabin walilkafireena AAathabun muheenun
I.e., out of envy that God should bestow revelation upon anyone but a descendant of Israel - in this particular instance, upon the Arabian Prophet, Muhammad.
Racial arrogance made the Jews averse to the reception of Truth when it came through a servant of God, not of their own race. Again the lesson is wider. Is that averseness unknown in our own times, and among other races? Yet how can a race or a people set bounds to God's choice? God is the Creater and Cherisher of all races and all worlds.