Adam Clarke on Romans 9:25

As he saith also in Osee - It is a cause of not a little confusion, that a uniformity in the orthography of the proper names of the Old and New Testaments has not been preserved. What stranger to our sacred books would suppose that the Osee above meant the Prophet Hosea, from whom, Hos 2:23, this quotation is taken: I will have mercy on her that had not obtained mercy; and I will say to them which were not my people, Thou art my people. The apostle shows that this calling of the Gentiles was no fortuitous thing, but a firm purpose in the Divine mind, which he had largely revealed to the prophets; and by opposing the calling of the Gentiles, the Jews in effect renounced their prophets, and fought against God.