Was Paul inspired? I believe so. Yet, still, I never approach his writings as if he is perfect. Paul spoke often of his own opinions on subjects and several times stated such.
I test all writings against Torah. They must line up with Torah or not be accepted. Occasionally, I can't quite clarify one thing or another, and have to put something on the back burner until I am able to clear it up. Sometimes I need a bigger stove. LOL.
Yet, Paul was of the school of Hillel, trained by Gamliel, and if you know anything about them, you know Paul knew the Torah.
ZA, What do you think of Paul's abnegation of the circumcision ritual?