Fascinating question, and a number of really good posts so far. I note Gretta's; others I've not yet read in detail.

Offhand I think Christianity without Paul would be much like I practice.

I dispute Sophiee's allegations as to the church at Jerusalem. I have disputed the same allegations before, on the "Response to Arikm" thread {link}. Numerous additional pertinent posts on that thread remain at this time unreleased.

P.

‎‎חֲזַק וֶאֱמָץ
אַֽל־תַּעֲרֹץ וְאַל־תֵּחָת
כִּי עִמְּךָ יְהוָה אֱלֹהֶיךָ בְּכֹל אֲשֶׁר תֵּלֵֽךְ׃