25 Concerning the Gentiles, God says in the prophecy of Hosea, "Those who were not my people, I will now call my people. And I will love those whom I did not love before." 26 And, "Then, at the place where they were told, 'You are not my people,' there they will be called 'children of the living God.'" 27 And concerning Israel, Isaiah the prophet cried out, "Though the people of Israel are as numerous as the sand of the seashore, only a remnant will be saved. 28 For the Lord will carry out his sentence upon the earth quickly and with finality." 29 And Isaiah said the same thing in another place: "If the Lord of Heaven's Armies had not spared a few of our children, we would have been wiped out like Sodom, destroyed like Gomorrah."
Matthew Henry's Commentary on Romans 9:25-29
Commentary on Romans 9:25-29
(Read Romans 9:25-29)
The rejecting of the Jews, and the taking in the Gentiles, were foretold in the Old Testament. It tends very much to the clearing of a truth, to observe how the Scripture is fulfilled in it. It is a wonder of Divine power and mercy that there are any saved: for even those left to be a seed, if God had dealt with them according to their sins, had perished with the rest. This great truth this Scripture teaches us. Even among the vast number of professing Christians it is to be feared that only a remnant will be saved.