All of Paul's revelation came from Christ.
And "incidentally," the very mystery of the church under discussion contradicts your notion
of the separation of believig Jews and believing Gentiles in the NT, for
the NT church is the mystery of the Gentiles now being included in the one olive tree of God's people,
both OT and NT; i.e., the church (
ekklesia, Acts 7:38),
whose roots are the OT patriarchs (
Ephesians 3:3-6).
Acts 15 is about Antioch, where there were a large number of Jewish Christians, as well as Gentile Christians,
and the Gentile practices of eating meat that had not been strangled, or eating food that had been sacrificed to idols or
indulging in some of the Gentile weaknesses were particularly repulsive to the Christian Jews.
So an accommodation was made for the Christian Jews during this time of transition from the Old Covenant to the New Covenant,
whereby the Gentiles would refrain from these practices for the sake of harmony and fellowship between them.
These restrictions were not for the whole church, nor were they permanent for Antioch,
for we find them later on emphatically rejected by Paul for the New Covenant.
That remains for you to demonstrate.
And
you still have not Biblically demonstated your two contra-Biblical notions:
1) the church is not the body of Christ,
2) the gospels are not for the church, the body of Christ.
Non-responsive. . .again.