"Replacement Theology" turns the word "Israel" into a dual-purpose word, retaining its literal meaning "Israel" as a natural people, but simultaneously turning it into an allegorized term denoting a "spiritual people." There is no basis for inserting this process of allegorization, which began at some point in the Early Church and was adopted by leading figures, including the Church Fathers, who thought it might be on a par with "revelation."
Though Paul does use allegory, he does not allegorize "Israel" by redefining it as the International Church. He only defines the nation as an ideal which is an ages-long process that requires a long time to arrive at. Many are delegitimized not because they have ceased to be Israelis, but only because they have ceased to belong to a nation from which they have religiously departed. They are "cut off" like any apostate would be cut off from a doctrinally-orthodox congregation.
Israelis never cease to be Israelis even when the entire majority have apostacized. That's because there is no nation left to be cut off from--they've all been exiled. But even in exile they remain members of Israel potentially, inasmuch as those Jews in exile have been given a hope of return when they repent of their sins. And even those who remain ignorant in their sins can be restored, since God has indeed promised to restore Israel at a time when they don't deserve it. Ezekiel 36.
Though Paul does use allegory, he does not allegorize "Israel" by redefining it as the International Church. He only defines the nation as an ideal which is an ages-long process that requires a long time to arrive at. Many are delegitimized not because they have ceased to be Israelis, but only because they have ceased to belong to a nation from which they have religiously departed. They are "cut off" like any apostate would be cut off from a doctrinally-orthodox congregation.
Israelis never cease to be Israelis even when the entire majority have apostacized. That's because there is no nation left to be cut off from--they've all been exiled. But even in exile they remain members of Israel potentially, inasmuch as those Jews in exile have been given a hope of return when they repent of their sins. And even those who remain ignorant in their sins can be restored, since God has indeed promised to restore Israel at a time when they don't deserve it. Ezekiel 36.