Well, yeah, but what does this have to do with the OP?
In the early ekklesia (the ‘church’) Jews still followed the Law and met on the Lord’s Day (our Sunday) to remember Jesus as he commanded.
As the movement spread to non-Jews (called “Godfearers” in the NT) many Jews wanted the Gentiles to follow the Law (circumcision; kosher; purification). This is why the Catholic Church kept St Paul’s letters: they address many of these issues between Jews and non-Jews who followed Jesus as the Son of Man and the Messiah promised and predicted in Jewish Scripture (there was NO canon of Jewish scripture prior to Jamnia approximately 90 AD).
Regardless of the idiots throughout history in positions of power (bad popes; bad kings and dukes; bad queens and counts) who persecuted the Jews for (primarily) the scandalous accusation of being God Killers (which when you think about it was predicted in OT scripture and thus was necessary for the Divine Plan; but the sheer evilness and stupidity of fundamentalists in the Church is for another thread), the Catholic Church is primarily through Jesus, the new chosen people: all nations, all people. The message was for all, not for just the Jews.
This does not change the covenant God has with the Jews. They are still the Chosen People and (according to John Paul II and many, many Catholics) under the grace of God and the salvation of His mercy. Heck, my wife is Jewish. I’m the one who better work out my salvation in “fear and trembling!”
Sorry for running on, RB, but that in a nutshell (old law school habits die hard) is a gloss on Jews/Jesus/Christians.