NIV Eph 2:2 in which you used to live when you followed the ways of this world and of the ruler of the kingdom of the air, the spirit who is now at work in those who are disobedient.
MGNT 2:2 ἐν αἷς ποτε περιεπατήσατε κατὰ τὸν αἰῶνα τοῦ κόσμου τούτου κατὰ τὸν ἄρχοντα τῆς ἐξουσίας τοῦ ἀέρος τοῦ πνεύματος τοῦ νῦν ἐνεργοῦντος ἐν τοῖς υἱοῖς τῆς ἀπειθείας
The #4 entry of BDAG has Aiwn in Ephesians 2:2 listed as an entity named Aeon!:
④ the Aeon as a person, the Aeon (Rtzst., Erlösungsmyst. 268 index under Aion, Taufe 391 index; Epict. 2, 5, 13 οὐ γάρ εἰμι αἰών, ἀλλʼ ἄνθρωπος=I am not a being that lasts forever, but a human being [and therefore I know that whatever is must pass away]; Mesomedes 1, 17=Coll. Alex. p. 197, 17; Simplicius in Epict. p. 81, 15 οἱ αἰῶνες beside the μήτηρ τῆς ζωῆς and the δημιουργός; En 9:4 κύριος τ. κυρίων καὶ θεὸς τ. θεῶν κ. βασιλεὺς τ. αἰώνων; PGM 4, 520; 1169; 2198; 2314; 3168; 5, 468; AcPh 132 [Aa II/2, 63, 5]; Kephal. I p. 24, 6; 45, 7) ὁ αἰ. τοῦ κόσμου τούτου Eph 2:2. The secret hidden from the Aeons Col 1:26; Eph 3:9 (Rtzst., Erlösungsmyst. 235f); IEph 19:2 (Rtzst. 86, 3); cp. 8:1 (Rtzst. 236, 2). Various other meanings have been suggested for these passages.—CLackeit, Aion I, diss. Königsbg. 1916; EBurton, ICC Gal 1921, 426–32; HJunker, Iran. Quellen d. hellenist. Aionvorstellung: Vortr. d. Bibl. Warburg I 1923, 125ff; ENorden, D. Geburt des Kindes 1924; MZepf, D. Gott Αιων in d. hellenist. Theologie: ARW 25, 1927, 225–44; ANock, HTR 27, 1934, 78–99=Essays I, ’72, 377–96; RLöwe, Kosmos u. Aion ’35; EOwen, αἰών and αἰώνιος: JTS 37, ’36, 265–83; 390–404; EJenni, Das Wort ʿōlām im AT: ZAW 64, ’52, 197–248; 65, ’53, 1–35; KDeichgräber, RGG I3 193–95; HSasse, RAC I 193–204; MNilsson, Die Rel. in den gr. Zauberpapyri, K. humanist. Vetenskapssamfundets Lund II ’47/48, 81f; GJennings, A Survey of αιων and αιωνιος and their meaning in the NT, ’48; GStadtmüller, Aion: Saeculum 2, ’51, 315–20 (lit.); EDegani, ΑΙΩΝ da Omero ad Aristotele ’61 (s. Classen, Gnomon 34, ’62, 366–70; D.’s reply in RivFil 91, ’63, 104–10); MTreu, Griech. Ewigkeitswörter, Glotta 43, ’65, 1–24; JBarr, Biblical Words for Time2 ’69; OCullman, Christus u. die Zeit3 ’62.—B. 13. EDNT. DDD s.v. Aion. DELG. M-M. TW. Sv.
Arndt, W., Danker, F. W., Bauer, W., & Gingrich, F. W. (2000). A Greek-English lexicon of the New Testament and other early Christian literature (3rd ed., p. 33). Chicago: University of Chicago Press.
I found more information HERE that shows that an Aion was "One of the embodiments of the divine attributes of the Eternal Being." This is fascinating as it gives a much clearer picture both of the role of the messiah and of the antichrist.
Here is a much more complete picture.
- Αἰών, ὁ, personified, “Αἰὼν Χρόνου παῖς” E.Heracl.900 (lyr.), cf. Corp.Herm.11, etc.; as title of various divine beings, Dam.Pr.151, al.; esp.=Persian Zervan, Suid. s.v. Ἡραἰ̈σκος.
So I'm sold. But not everyone is. Most of the English translations I see either have "the course of" or "the ways of", neither of which are part of the semantic domain of AIWN. What is the argument for these translations and which is right?