Now, the assembly in the desert is called ekklesia in the Acts passage. How long have you studied NT Greek? For me, it's nearing 30 years. Luke uses the word ekklesia MORE TIMES to describe a SECULAR POLITICAL ASSEMBLY than he does Israel.
That makes it statistically likelier that the church is a SECULAR POLITICAL ASSEMBLY than it is Israel.
In point of fact, as I demonstrated above, Paul always and everywhere distinguishes between the church of Christ and Israel.
A Reformed approach to exegesis demands a distinction between the church of Christ and the nation of Israel.
Dan