The commnad had to do with the Galilean ministry. Why do you insist on applying it to events twenty years later? As for the evangelical dispute, was this not simply because Peter got a warmer reception among the Jews? Paul was a radical and his success was mainly among the gentiles. Division of labor. This is what happens when one attempts to dismiss all evidence except what is contained in the Scriptural record. Scripture gives us only a few hundred pages about events extending over a whole generation and concerning the lives of thousands of people over a region half the size of the United States. Face it: we don’t get anything like a complete history.
You can try to spin it all you want but the simple answer is....and always has been.... that you folks picked the wrong horse. You should have called Paul your first Pope and then your shaky ground would have been a little more firm.
Don't get me wrong. Paul would not have participated in such a sham either....but at least you folks wouldn't look so silly trying to convince the uninformed of your false traditions!