Philo Sofee wrote:That Joseph Smith comes up with it does not necessarily signal a specific restoration of "Christian doctrine," because, as I maintain, there is no single Christian entity back then. Elaine Pagels' interview with Bill Moyers said it best. There were as many Christianities in Jesus' day as there are now. Rather, to be more accurate, as many Judaisms.
I certainly agree. Converts tend to bring much of their beliefs with them. That's as true in early Christianity as it was in early Mormonism. And for whatever reason Jesus didn't write anything down that we know of. Further, I think there's fairly compelling reasons to think he did communicate inner teachings to a select few. Perhaps somewhat analogous to how the Mormonism of the Nauvoo inner circle differed from the average Mormon at the time.
There was then flow of doctrines, debates and such moving back and forth. Just on the pages of the New Testament you see that. There's often tension between Paul and Jerusalem. Paul is warning churches he writes to of false prophets and syncretic tendencies. Paul clearly still has a lot of his style of Phariseeism in him. He also pushes a quasi-mystic take much more than others like James. And so forth.
I'd love to have some accurate records of what the group back in Jerusalem thought at this time and just what the roles of Peter, James Jesus' brother, and John all were and what they though.