As he says in Hosea, They will be named my people who were not my people, and she will be loved who was not loved.
And in the place where it was said to them, You are not my people, there they will be named the sons of the living God.
And Isaiah says about Israel, Even if the number of the children of Israel is as the sand of the sea, only a small part will get salvation:
For the Lord will give effect to his word on the earth, putting an end to it and cutting it short.
And, as Isaiah had said before, If the Lord of armies had not given us a seed, we would have been like Sodom and Gomorrah.
What then may we say? That the nations who did not go after righteousness have got righteousness, even the righteousness which is of faith:
But Israel, going after a law of righteousness, did not get it.
Why? Because they were not searching for it by faith, but by works. They came up against the stone which was in the way;
As it is said, See, I am putting in Zion a stone causing a fall, and a rock in the way: but he who has faith in him will not be put to shame.