Same entry in ps.-Zonaras. One might suppose the nominative plural headword to be extracted from the quotation given, but see the note below. Perhaps, therefore, quoted from Homer, Iliad 18.213 (or Oppian, Halieutica 4.72).
cf. generally alpha 1297.
[1] Identified by D. Ruhnken as part of an oracle of Apollo quoted also by (e.g.) Athenaeus, Deipnosophists 13.602C (13.78 Kaibel), and Aelian, Varia Historia 2.4: qei/as a(ghth=res e)fameri/ois filo/tatos, "guides of divine friendship for mortals". See further H.W. Parke & D.E.W. Wormell, The Delphic Oracle (Oxford 1956) no.327; J. Fontenrose, The Delphic Oracle: its responses and operations with a catalogue of responses (Berkeley 1978) 297; Aelian, Historical Miscellany, edited and translated by N.G.Wilson (Cambridge Mass. 1997) 69 note a.