metis
aged ecumenical anthropologist
I didn't miss it at all since Paul's reference is to various roles that were, and still are, very much a part of the Church's mission and structure. At no point does Paul state nor imply that there is more than "one body", to use his own words, that are to be followed and participated in. It is this very simple fact that was partially instrumental in my abandoning the Protestant faith I grew up in after doing the research on early Christian history and reading how the Apostles and their appointees pictured the Church and its roles.I believe you missed the part where it says the one body has many parts: I Cor. 12:14 For the body does not consist of one member but of many. 15 If the foot should say, “Because I am not a hand, I do not belong to the body,” that would not make it any less a part of the body
More likely these days it is the body saying it doesn't have a hand or because I am a hand, I am better than a foot.
This reality also shows up rather clearly in Acts, whereas the Church is appointing successors and also moving out of eretz Israel, and also in many of the epistles whereas the importance of appointees and the congregation following them is continued. At no point is there ever a "just do your own thing" approach sanctioned.
And just a reminder that the canon of the Bible you quoted from above was actually the byproduct and selection by the Church itself. Other books by other groups were rejected.