I like his argument, I can add this to it also:
Genesis 17-20 :" And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation. "
So ISHMAEL will :
(1) Be fruitful
(2) multiplied exceedingly
(3) Be a Great Nation
Great nation does not mean a nation with large numbers:
Deuteronomy 4:"
7: For what great nation is there that has a god so near to it as the LORD our God is to us, whenever we call upon him?
8: And what great nation is there, that has statutes and ordinances so righteous as all this law which I set before you this day? "
Thanks