'Reason' in the Bible

Some, it is true, are [actually] preaching Christ out of envy and rivalry [toward me—for no better reason than a competitive spirit or misguided ambition], but others out of goodwill and a loyal spirit [toward me].

though I myself might have [some grounds for] confidence in the flesh [if I were pursuing salvation by works]. If anyone else thinks that he has reason to be confident in the flesh [that is, in his own efforts to achieve salvation], I have far more: