Claiming one for Jews and another for Gentiles is not the commandment of Jesus. That was Paul's invention! You seem to have missed the point that they parted company with heated arguments. There is only one God and one Son. Division is a sign of satanic work!
They had a disagreement and split up to go their separate ways for a while, but seemed to reconcile later. In 1 Corinthians 9:6 Paul says, "or is it only I
and Barnabas who must work for a living?" Their disagreement was not over doctrine, theology or the work of Christ, but only over who should accompany them on a particular journey.
People disagree sometimes.
You started this thread which is in the controversial theology section of the forum. Either you deliberately started it in this forum, or it was moved there because the things in the OP are controversial. Something which is controversial is bound to cause disagreement and division - is this thread therefore a work of Satan too.
Writings don't include everything. That is why Jesus sent the Holy Spirit. He will always remind us of His teaching. Jesus never said to rely on bunch of selected writings to know His way, life and truth.
Yes, Jesus is the Way, the Truth and the Life. Jesus is revealed in the Bible - foretold in the Old Testament, presented in the Gospels, taught, proclaimed and explained in the epistles.
Inspired by the Holy Spirit.
I always consider Paul's writings when they complement the Gospel. His assumptions are ignored. John calls all those who self-claim as apostles as liars in Revelation.
Paul preaches the Gospel so that is a good reason to listen to, and trust, him.
Paul was accepted as an apostle. There is no Scriptural evidence that Peter said, "here, Paul, you can be called an apostle"; neither is there any evidence that Paul said, "I think I deserve, and am going to assume, the title of apostle." So as I see it, you can only be assuming that he appointed himself to be one - i.e "Paul calls himself an apostle, there is no record of him being made one so he must have self-appointed."
You've just said that you ignore assumptions.
Now Tom, Dick and Harry claim that their interpretations, sayings and writings are inspired by the Holy Spirit!
They may be, but they are not Holy Scripture; nothing can be added to, or taken from, Holy Scripture.
! We judge them by their fruits.
Judge Paul by his fruits then - major writer of NT books; hundreds, if not thousands, of lives changed as a result of his writings.