Gen 18:16-19 And the men rose up from thence, and looked toward Sodom: and Abraham went with them to bring them on the way. And YHVH said, Shall I hide from Abraham that thing which I do; Seeing that Abraham shall surely become a great and mighty nation, and all the nations of the earth shall be blessed in him? For I know him, that he will command his children and his household after him, and they shall keep the way of YHVH, to do righteousness and judgment; that YHVH may bring upon Abraham that which he hath spoken of him.
A scientific study was done some years ago,which indicates that the genetic heritage between Jewish people and [some of] the Arabs shows that they have a common ancestor —Abraham —just as the Bible records. http://www.sciencedaily.com/releases/2000/05/000509003653.htm
That being so,then Arab peoples get to Abraham through Esau/Edom,Jacob’s twin brother,and through Ishmael,Isaac’s half-brother. Perhaps the Palestinians aren’t an “invented people” after all, but have simply lost track of, or disconnected from, their Semitic roots.
The Israeli-Palestinian conflict in the Middle East today is the culmination of the same family feud over the inheritance which has gone on for millennia (not a mere 100 years!), and Israel’s re-emergence as a nation-state has brought the family feud to the boiling point. This feud is founded in covenant, and so defies solutions which may apply to any other conflict between nations or people groups. Both the Jewish people and the Arabic peoples show ourselves to be the children of our fathers in spirit,even if we can not produce the documents! Science has confirmed the Scriptures!