Lucian Deorum concilium 9

[9] Or must I omit him also, for the sake of Ganymede? But Attis at all events, Zeus, and Corybas ¹ and Sabazius ² —how did they get trundled in upon us? Or Mithras yonder, the Mede, with his caftan and his cap, who does not even speak Greek, so that he cannot even understand if one drinks his health? The result is that the Scythians—the Getae among them—seeing all this have told us to go hang, and now confer immortality on their own account and elect as gods whomsoever they will, in the selfsame way that Zamolxis, a slave, obtained fraudulent admission to the roster, getting by with it somehow or other. ³

[9] Well, you must allow me Attis, Corybas, and Sabazius: by what contrivance, now, did they get here? and that Mede there, Mithras, with the candys and tiara? why, the fellow cannot speak Greek; if you pledge him, he does not know what you mean. The consequence is, that Scythians and Goths, observing their success, snap their fingers at us, and distribute divinity and immortality right and left; that was how the slave Zamolxis’s name slipped into our register.