Surely you jest. The Church is NOT Israel. Israel has its own future day of glory apart from the Gentile Bride. You might want to read some prophesy.....such as Zechariah, et al. Your name wouldn’t be Herbert W. Armstrong, by any chance?
I assume you understand that replacement theology heresy is part of mainline protestant, catholic and orthodox doctrine.
It probably started as speculation.
was Paul part of this Gentile Bride or Israel?
Israel has its own future day of glory apart from the Gentile Bride.
I take it that you reject Galatians 3:21-29 (particualrly "there is neither Jew nor Greek"). Notice how Paul keeps using the word "we" when spanning the ages from Creation to the present in terms of Faith and how salvation is obtained.
If there are two paths, one for Jews, another for Gentiles, then why did our LORD and the Apostles minister exclusively to the Jews for the first seven years?
You create a real problem here. Since Dispensationalists fancy Israel as the wife of God and the Church as the bride of Christ, don't we have a blatant Lev 20:14 sin on the occasion that an ethnic "DNA certified" Jew takes on the name of Christ? How did that passage in Amos 2;7 go?
"...a man and his father go in the same girl, to defile my holy name..."
Jesus is taking on His father's wife?
You need to rethink that heresy before claiming it as your faith.