Bibical sources indicate Abraham had 12 sons, there is no proof that today's Arabs and Moslems are descended from Ismael. Further, since the Prophet swept idols from the Kabbah in Mecca, Arabs had either abondoned the Patriarch's God in favor of hundrends of idols or never worshiped him in the first place. More likely the Prophet imitated the story of Abraham from Jewish sources to unite the Arabs. But to twist the story and make the first born of the concubine primary over the legal wife's son is a foundation for replacement theology, not fact. Some Xtians accept that their religion adopted the Jewish God and are 'graphed' on. Moslems need to be more respectful and observant of historical facts in this regard.
Ofir Akunis officially replaces Danny Danon as minister of science, technology, and space (Haaretz)
from the article: UN: Israel 'heritage sites' are on Palestinian land