Jeez, God didn't give the Jews Israel. Or perhaps he gave it and them took it away in punishment. That's in the Bible, too.
You could be one of those folks who believe anything they were taught before age 10.
I can't see where any sane Supreme Being would claim that a muddle as confusing as the Bible (or the Koran) was his holy and infallible word.Perhaps you should read the whole thing with a moderately critical eye before you believe this proposition.
But let us suppose that (1) God really did give them said real estate, and (2) he wants them to keep it.
Now if God is omnipotent, then why do I have to pay taxes so my government can help them keep it? Is God so puny that he needs the help of the USA to keep his promises?
And, no, this is not an antisemitic statement.