and there we have the whole point of trinity doctrine, i guess
Not in my opinion. There were several "ideas" that were floating around. The trinity doctrine gained traction IMO due to secular and "other" influence(s). However, to disagree, became verbotten. To have in one's possession any writings that were contrary, also became verbotten.
Such were ordered to be burned at various points in history, as well as the house(s) that contained them. Said "punishment" varied from confiscation of one's property to capital punishment. Heck, if someone claimed that I was "disturbing" the "church" in speaking as I do, even that held capital punishment at a time in history. And of course, anyone not accepting it, was deemed heretical, which also was punishable by law.
If memory serves, I believe it was circa 405 CE that an edict was decreed that all shall recognize the trinity. But again, there were a great number of such edicts that were put in place through secular authority(s).
"[T]hose who accept Messiah in such a way that they do
not cease to observe the Old Law" Jerome; On. Is. 8:14.
Panarion 29, Epiphanius writes:
"We shall now especially consider heretics who... call themselves Nazarenes; they are mainly Jews and nothing else. They make use not only of the New Testament, but they also use in a way
the Old Testament of the Jews; for they do not forbid the books of the Law, the Prophets, and the Writings ... so that they are approved of by the Jews, from whom the Nazarenes do not differ in anything, and they profess all the dogmas pertaining to the prescriptions of the Law and to the customs of the Jews, except they believe in [Messiah]... They preach that there is but
one [Elohim], and his son [Y'shua the Messiah]. But they are very learned in the Hebrew language; for they, like the Jews, read the whole Law, then the Prophets... They differ from the
Jews because they believe in Messiah, and from the Christians in that they are to this day bound to the Jewish rites, such as circumcision, the Sabbath, and other ceremonies."
What does Epiphanius mean when he writes:
"They do not forbid the books of the Law, the Prophets, and the Writings"?
Does that imply that it was "forbidden" elsewhere?
364 CE: The Council of Laodicea orders all religious observances are now to be held on Sunday. Shabat, or Saturday is declared sinful and against Christ.