Yes good point, however as scripture interprets scripture, I expect understanding comes from a rounded knowledge of the whole Bible and not some fancy theology that has a human agenda.
If we don't get a dialogue going on this I will give my take on what come to me as I read each bunch of verses.
The heart of His argument is summed up here;
21 Hath not the potter power over the clay, of the same lump to make one vessel unto honour, and another unto dishonour?
22 What if God, willing to shew his wrath, and to make his power known, endured with much longsuffering the vessels of wrath fitted to destruction:
23 And that he might make known the riches of his glory on the vessels of mercy, which he had afore prepared unto glory,
24 Even us, whom he hath called, not of the Jews only, but also of the Gentiles?
25 As he saith also in Osee
, I will call them my people, which were not my people; and her beloved, which was not beloved.
26 And it shall come to pass, that in the place where it was said unto them,
Ye are not my people; there shall they be called the children of the living God.
27 Esaias also crieth concerning Israel, Though the number of the children of Israel be as the sand of the sea,
a remnant shall be saved:
28 For he will finish the work, and cut it short in righteousness: because a short work will the Lord make upon the earth.
29 And as Esaias said before
, Except the Lord of Sabaoth had left us a seed, we had been as Sodoma, and been made like unto Gomorrha.
30 What shall we say then?
That the Gentiles, which followed not after righteousness, have attained to righteousness, even the righteousness which is of faith.
31
But Israel, which followed after the law of righteousness,
hath not attained to the law of righteousness.
32 Wherefore?
Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumblingstone;
33 As it is written, Behold, I lay in Sion a stumblingstone and rock of offence: and whosoever believeth on him shall not be ashamed.
Carl, In explaining why israel failed to attain God's righteousness, he points out that God's purpose will not be frus=trated because of the election of grace.
Elect Jew and Gentile as one new man on equal footing In Christ.
God's eternal purpose will not be thwarted, he has insured it.
Earlier he set it up by using two different words;
6 Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel:
7 Neither, because they are the
seed of Abraham,[natural seed, sperma} are they all children: but, In Isaac shall thy seed be called.
8 That is, They which are the children of the flesh,[
sperma] these are not the children of God: but the children of the promise are counted for the seed.[
teknon]