Yet the number of the children of Israel shall be as the sand of the sea, which cannot be measured nor numbered; and it shall come to pass, that in the place where it was said unto them, Ye are not my people, there it shall be said unto them, Ye are the sons of the living God. Yet the number of the children of Israel - God had promised that the children of Israel should be as the sand of the sea. See Genesis 32:12; Romans 9:25, Romans 9:26. And though for their iniquities he had thinned and scattered them, yet the spirit and design of his promise and covenant shall be fulfilled. An Israel there shall be. In the place of the reprobated people, who were now no longer his people, there shall be found an Israel that shall be the children of the living God. See the above scriptures, and 1 Peter 2:10. This must mean either the Israelites after their conversion to Christianity, or even the Gentiles themselves converted to God, and now become the true Israel.
Related Commentaries of Hosea 1:10
Hosea 1:10
10 Yet the number of the children of Israel shall be as the sand of the sea, which cannot be measured nor numbered; and it shall come to pass, that in the place where it was said unto them, Ye are not my people, there it shall be said unto them, Ye are the sons of the living God.