J. B. Lightfoot on Colossians 2:15

τὰς ἀρχὰς καὶ τὰς ἐξουσίας ἐδειγμάτισεν τὰς ἀρχὰς κ.τ.λ.] What powers are especially meant here will appear from Ephes. vi. 12 πρὸς τὰς ἀρχάς, πρὸς τὰς ἐξουσίας, πρὸς τοὺς κοσμοκράτορας τοῦ σκότους τούτου, πρὸς τὰ πνευματικὰ τῆς πονηρίας κ.τ.λ. See the note on i. 16. ἐδειγμάτισεν] ‘_displayed_’, as a victor displays his captives or trophies in a triumphal procession: Hor. _Epist._ i. 17. 33 ‘captos ostendere civibus hostes’. The word is extremely rare; Matt. i. 19 μὴ θέλων αὐτὴν δειγματίσαι (where it ought probably to be read for the more common word παραδειγματίσαι), _Act. Paul. et Petr._ 33 ἔλεγε πρὸς τὸν λαὸν ἵνα μὴ μόνον ἀπὸ τῆς τοῦ Σίμωνος ἀπάτης φύγωσιν ἀλλὰ καὶ δειγματίσουσιν αὐτόν. Nowhere does the word convey the idea of ‘making an example’ (παραδειγματίσαι) but signifies simply ‘to display, publish, proclaim’. In the context of the last passage we have as the consequence, ὥστε πάντας τοὺς εὐλαβεῖς ἄνδρας βδελύττεσθαι Σίμωνα τὸν μάγον καὶ ἀνόσιον αὐτὸν _καταγγέλλειν_, i.e. to _proclaim_ his impieties. The substantive occurs on the Rosetta stone l. 30 (Boeckh, _C. I._ 4697) τῶν συντετελεσμένων τὰ πρὸς τὸν δειγματισμὸν διάφορα.