Charles Ellicott Commentary Romans 9:26

"And it shall be, [that] in the place where it was said unto them, Ye are not my people, There shall they be called sons of the living God." — Romans 9:26 (ASV)

And it shall come to pass.—This, too, was originally spoken of the restoration of the northern exiles to the land of Palestine. As applied to the conversion of the Gentiles, it would mean that the lands which had previously been heathen should become Christian. There is some doubt whether the Hebrew of Hosea should not instead be translated “instead of calling them,” rather than “in her place where it was said unto them.” Instead of calling them You are not my people, they will be called Sons of the living God. So Ewald and Hitzig.