The Jews have always known the covetous Arabs who occupy Israel are identified as Ishmael, and the Arabs themselves know it - even if it possibly became better known to some in the North and West due to Mohammad's confirmation. Besides, who else fits the biblical profile like the Arabs feuding with the Jews over inheritance?

Genesis 15:
18 On that day the LORD made a covenant with Abram and said, "To your descendants [through Isaac] I give this land, from the river of Egypt to the great river, the Euphrates: 19 the land of the Kenites, Kenizzites, Kadmonites, 20 Hittites, Perizzites, Rephaites, 21 Amorites, Canaanites, Girgashites and Jebusites."

Genesis 16:12
He [Ishmael] shall be a wild man;His hand shall be against every man, And every man's hand against him. And he shall dwell in the presence of all his [Arab] brethren."

Genesis 17:
19 Then God said, "Yes, but your wife Sarah will bear you a son, and you will call him Isaac. I will establish my covenant with him [Isaac] as an everlasting covenant for his descendants after him. 20 And as for Ishmael, I have heard you: I will surely bless him; I will make him fruitful and will greatly increase his numbers. He will be the father of twelve rulers, and I will make him into a great nation. 21 But my covenant I will establish with Isaac, whom Sarah will bear to you by this time next year." 22 When he had finished speaking with Abraham, God went up from him.

Genesis 25:
5 Abraham left everything he owned to Isaac. 6 But while he was still living, he gave gifts to the sons of his concubines and sent them away from his son Isaac to the land of the east.

Meir Kahane, former Israeli Parliament member and rabbi (murdered by another Arab terrorist) agreed with Sarah's inspired words to Abraham about the necessity of separation between Ishmael and Israel. Kahane was right: "They must go!"

Representing Abraham's vain attempt at "peaceful coexistence" = "Shimon Peres has No Clothes: Where's the Peace?"

Representing Sarah's inspired wisdom that knows "peaceful coexistence" will never work =>"Daniel Pipes: Can the Leopard Change Its Spots?"