I post from those "primary sources" Catholics like to rely on and they deny what it says. The problem with your statement is that the RCC considers scriptures only a source along with some mysterious we can come up with anything philosophy they call tradition. My "primary source" is scripture.
There is no support in scripture for many of the teachings of the RCC.
where did the NT come from and how do you KNOW it?
cue the crickets......
A young boy had a box full of puppies in it and one of the local protestant ministers came up and the boy asked him if he wanted to see the protestant puppies. the minister was delighted. three weeks later he brought a Catholic Priest friend of his over to the young boys house. The boy asked if they wanted to see the Catholic Puppies. The minster commented that three weeks ago the boy had said they were protestant, the boy replied that yes they had been protestant 3 weeks ago, but that was when they had their eyes closed.
Think about it, and rember it was the Catholic Church that gave you the New Testament.