Keeping days

Everyone else, I’m sure, has already noticed this, but I’m slow: If, as many commentators argue, Paul’s practical concern in Romans is to encourage Gentile believers to accept their Jewish brothers (as reflected in Romans 14), then the discussion of the keeping of days and of eating should be seen in that context. The days in view would then be specifically Jewish festival days, which, in the time Paul is writing are indifferent. The passage says nothing directly about whether the church should have its own calendar.