Actually, the notion that God would change his mind and condemn his Chosen People to eternal damnation because He suddenly decided to go against his own Holy Word by appearing on Earth as a demi-god and fail to fulfill the prophecies of his own Chosen People as Messiah is the height of absurdity.
Your fickle god is not the God of the Jews. They’ll be just fine.
So; if we just forget that JESUS fellow; I suppose that GOD never had any CONDEMNATION for his chosen people to be found in the OT?