Does the non-repetition of a preposition followed by two nouns joined by καί require that the two nouns form a hendiadys? I am looking at John 3:5 γεννηθῇ ἐξ ὕδατος καὶ πνεύματος.
Nigel Turner, Syntax, states that in John's gospel, he has 15 opportunities to repeat the preposition, but does so only 8 times (275).
Turner's results seem to contradict G. B. Winer who states: "When two or more substantives dependant on the same preposition immediately follow one another joined together by a copula, the preposition is most naturally repeated, if the substantives in question denote things which are to be conceived as distinct and independent … but not repeated, if the substantives fall under a single category" (419-420).
A. T. Robertson, contra Winer, states that "one cannot properly insist on any ironclad rule" regarding repetition of prepositions (566.)
Does non-repetition of the preposition mandate a hendiadys?