The significance lies, of course, in whether the last two elements are
equal, parallel members with the first three, or if they are to be treated
as a joint (hyphenated?) member. (Granville Sharp rule does NOT apply here,
BTW, since the nouns are plural).
apostles or apostles
pastors pastors-teachers [or: pastors, even teachers]
Rodney J. Decker, Asst. Prof./NT Baptist Bible Seminary
email@example.com Clarks Summit, PA