Let me give you the background of when this verse was given: the children of Israel were a nation that had been promised in embryo to Abraham.
8:20 Uunkii waxaa la hoos geliyey wax aan waxtar lahayn, ikhtiyaarkiisna uma uu hoos gelin, laakiin waa kii hoos geliyey aawadiis, 8:21 taasoo la rajaynayo in uunka qudhiisana laga xorayn doono addoonnimada qudhunka ah oo la gelin doono xorriyadda ammaanta carruurta Ilaah.