Ἠσαΐας 42:19

¹⁹Καὶ τίς τυφλὸς ἀλλʼ ἢ οἱ παῖδές μου, καὶ κωφοὶ ἀλλʼ ἢ οἱ κυριεύοντες αὐτῶν; καὶ ἐτυφλώθησαν οἱ δοῦλοι τοῦ Θεοῦ.