Oh good grief. Im assuming you are referring to the text in bold in verse 8.
Romans 9:7 Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called. 8 That is, They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.
You take that passage and try to build your presuppositions into that passage. How about lets look at the rest of that passage to see what he meant by that statement?
Romans 9:13 As it is written, Jacob have I loved, but Esau have I hated.
You see that Jacob was a child of God but Esau although a child of flesh was not considered a child of God. It was the children of promise aka offspring of Jacob that were counted for seed even though Esau was also seed but God rejected that seed and didnt call them children of promise. Trying in inject the church into that passage is complete error.
>> you see there is reason the Church taught who the true Israel of God is for 2,000 years<<
Dont even go into the Church nonsense with me. The CC is so far off from true scripture it doesnt deserve discussion.
"For he is not a Jew, which is one outwardly; neither is that circumcision, which is outward in the flesh: But he is a Jew which is one inwardly; and circumcision is that of the heart, in the spirit, and not in the letter: whose praise is not of men, but of God." Rom. 2:28,29.
A true Jew is not the one who is circumcised in the flesh, neither is true circumcision in the flesh. A true Jew is one that has inward circumcision of the heart and in the spirit and has more than an outward cutting in the flesh and a profession of truth. This does NOT teach that every Christian is a Jew, "true Israel", but to be a true Jew one must be of the seed of Abraham, and have circumcision of the heart, AND be a child of the promise. PROPHECY. Which leads to Rom. 9:6-8.
This is about Israel. Literal Israel. Not the church the body of Christ. It's about the word of promise, PROPHECY, concerning a Nation, Israel. Don't believe me? Read Rom. 9:4. Israel, not the Church.