Paul and early Jesus followers did not preach Trinity... They are Jews, and it is to them that God can not be a man. Trinity emerged centuries after them.
On Jerusalem Council, Acts 15:19-22.
And as for the four laws for the gentiles: "Wherefore my sentence is, that we trouble not them, which from among the Gentiles are turned to God: that they abstain from pollutions of idols, and from fornication, and from things strangled, and from blood."
This verse is interestingly followed by:
“For [the law of] Moses has been preached in every city from the earliest times and is read in the synagogues on every Sabbath.”
This said that Torah is to be preached to every city, and read in the synagogues every Sabbath, just like in the early time of Torah, to be learned, together
I can't help but to conclude that they were not trying to erase the law. They were against the proselytizing ritual of the Pharisee; circumcision. Jews today do have this set of processes if one wants to be a part of the Jewish community.
Maybe just like how modern Christian use baptism as ritual of becoming a member, or syahadah in front of two witnesses in Islam tradition. They were against circumcision as a mark of proselytizing. Early church fathers said, the Law of Moses will be read every Sabbath, not forced in a day. For even Israel did not uphold Torah in one day straight. This is that yoke that should be shared together, and after Christ, you are under law not as a law, but law as a grace.
There are Messianic Jews, who hold that interpretation to Jerusalem Council found in Acts 15.
Nowadays, we see that everyone can put any belief or ideology into scriptures, it's always best to keep learning, especially to understand the message of the scriptures and their historical context..
Salam,
Alta