Israel does not exist by the grace of the United Nations; Israel exists by the Grace of God on the basis of an everlasting covenant. Who better to be the judge of the entitlement to the Promised land?
“He is the Lord our God;
His judgments are in all the earth.
He remembers His covenant forever,
the word He commanded, for a thousand generations,
the covenant He made with Abraham,
the oath He swore to Isaac.
He confirmed it to Jacob as a decree,
to Israel as an everlasting covenant:
“To you I will give the land of Canaan
As the portion you will inherit” (Psalm 105:7-11).