- There is no hint in the Corinthian correspondence that Barnabas played any role in the mission to Corinth. This is a significant silence (i.e. an argument about silence and not an argument from silence) given that others involved in Christian mission in Corinth are mentioned so often, Timothy, Titus, Apollo, Sosthenes.
- The primary evidence from Paul lines up with the secondary evidence of Acts here, that the split with Barnabas had in fact already happened before the mission to Corinth, let alone 1 Corinthians.
- If 1 Cor. 9.6 comes from a time before Paul's split with Barnabas, the window for the writing of 1 Corinthians that would be implied by this is simply too small. I can't believe that 1 Corinthians was written in between Jerusalem (Gal. 2.1-10) and Antioch (Gal. 2.11-20).
In an unexpected way, though, this has thrown up something relevant for reflecting on Pauline chronology. Given that 1 Corinthians and, indeed, the earlier mission to Corinth, appear to be post the Paul-and-Barnabas partnership, this is an important piece of evidence against Lüdemann's theory of an early mission to Corinth (early 40s). I need to go back to Lüdemann to see if he deals with this, and how.