The 1 Corinthians 15 creed was formed around AD 30-33 (AD 34-35 at the latest).
See here to discuss the evidences, like that…
This is relevant because the Jerusalem church was the source of most/all Christian tradition at that stage.
The underlying assumptions, concepts, and technical terms used in the creed cater best to a Jewish audience. Right?1
After all…
◦ …e.g. the “Christos”, meaning the Jewish messiah (a complex concept).
◦ …e.g. “the scriptures”, meaning the Jewish Bible (the Tanakh, i.e. Old Testament).2
◦ …e.g. “raised”, indicating the complex Jewish eschatological resurrection.
Those who formalized the 1 Corinthians 15 statement were, to a significant degree, personally familiar with the leaders of the Jerusalem church.
After all…
Whoever fashioned this creedal statement formed it in a mileau where it was commonplace to mention or discuss Jesus's twelve apostles.
After all…
The traditions that Paul inherited and relayed were habitually (if not strictly) traditions formed by the Jerusalem church. [Forthcoming] This is relevant because Paul was relaying a tradition which he recieved from elsewhere.[Forthcoming]
The Jerusalem church was at least circulating the essential message of the 1 Corinthians 15 creed.
After all…