When it comes to Pauls letters I know he wrote some personal opinion and even admits as such. He also comes across as confused in a few places, like blaming Eve for sin in one letter then in Romans saying Adam was the one who sinned. He has problems with women teaching in churches, whereas in the Old Testament you had women who taught - even Anna the prophetess in the gospels who was in the temple prophesying. Then you have the infamous Romans chapter 7 - speaks for itself.
I am born again by the Holy Spirit through Jesus, not Paul.