1 Corinthiens 14:10-11

10τοσαῦτα, εἰ τύχοι γένη φωνῶν ἐστιν ἐν κόσμῳ καὶ οὐδὲν ἄφωνον·

11ἐὰν οὖν μὴ εἰδῶ τὴν δύναμιν τῆς φωνῆς, ἔσομαι τῷ λαλοῦντι βάρβαρος, καὶ ὁ λαλῶν ἐν ἐμοὶ βάρβαρος.