A new preacher at chapel at the shelter last night is a big fan of Paul and consistently refers to him this way.
It got me to thinking.
Paul designated himself as "apostle to the gentiles" so as to avoid any competition with Peter, whom he designated "apostle to the Jews."
But if Peter WAS "apostle to the Jews," he may well have carried a very different message than did Paul. He may not have shared Paul's antipathy toward Torah. The whole faith-vs.-works thing may not have existed, in his view.
We can't know much for sure, since for example the epistles written "in his name" were certainly the work of someone else. But it may be that some parts of early Christianity were far friendlier to Judaism than we have supposed.