In Bereishis (Genesis) 17:7-8, the following is written:
"I will maintain My covenant between Me and you and your offspring to come as an everlasting covenant throughout the ages, to be G-d to you and your offspring to come. I give the land you sojourn in to you and your offspring to come, all the land of Canaan, as an everlasting possession."

Three times G-d includes the words "offspring to come" which precludes Hagar's son who was already born, according to Bereishis (Genesis) 16:15.

And so it was established... the bond between G-d, the Jewish people and the land, Eretz Yisrael... an everlasting bond that people in modern times cannot dissolve.

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