Exode 8:27-28

27ἐποίησεν δὲ κύριος καθάπερ εἶπεν Μωυσῆς, καὶ περιεῖλεν τὴν κυνόμυιαν ἀπὸ Φαραω καὶ τῶν θεραπόντων αὐτοῦ καὶ τοῦ λαοῦ αὐτοῦ, καὶ οὐ κατελείφθη οὐδεμία.

28καὶ ἐβάρυνεν Φαραω τὴν καρδίαν αὐτοῦ καὶ ἐπὶ τοῦ καιροῦ τούτου καὶ οὐκ ἠθέλησεν ἐξαποστεῖλαι τὸν λαόν.