I have copied this in total because I have no idea what you are getting at. Perhaps you can try again, more clearly this time.
That the Law is gone and Paul happened to be the bearer of that "bad news" for the Jews is precisely what got him into such hot water all the way through Luke's second journal (Acts of the Apostles). The man was hated by Jews who clung to the misunderstanding that the Law represented a means to holiness. When Paul told them it was simply a mirror, a tutor, to explain to them how bad they were and drive them to their knees, they detonated. The irrevocable gifts and calling have nothing to do with the Law.
Certainly, the RCC has errantly taken components of the Law (papalism (chief priest), sacerdotalism (priesthood), sacraments (sacrifices), temples (cathedrals), etc.) and extended them into an age of grace. Jesus prophesied the end of all of this when He said,"...an hour is coming, and now is, when the true worshipers shall worship the Father in spirit and truth...". When the blood was shed, the curtain was torn and the Law (as anything other than the tutor) faded away. But, the modern day Judaizers love their self-righteousness the way the Jews did then. Here then is a monstrous blasphemy.
And to the rest, it is ironic that Protestantism has reverted to the forms of the synagogues, with the Gospel now occupying the place of the Torah, and teachers like Luther in place of the rabbis--the successors of the Pharisees (all laymen).