All of Paul’s letters were completed almost 300 years before the Roman catholic church was founded.
They were written to real believers, not Mary/Easter worshipers, humanists, nor sun god worshipers. They were written to the “Lost Sheep of the House of Isael” scattered across the north rim of the Mediterranean, the people that were declared no longer a people in the book of Hosea, but again became a people under the ministry of Paul.
that, then would be one thousand 300 years before any protestant denomination was founded. Actually, Pauls letters were written as the Catholic church was in it's infancy. Christ founded His church on the apostles and the church grew as the various apostolic letters and proclamations were being made. Luckily for all of us, the Catholics wrote them down, collected them, copied them (by hand) for 1600 years, until the printing press was invented....thus you have an authentic Catholic bible to read!!