Exodus 24:18

καὶ εἰσῆλθεν Μωυσῆς εἰς τὸ μέσον τῆς νεφέλης καὶ ἀνέβη εἰς τὸ ὄρος καὶ ἦν ἐκεῖ ἐν τῷ ὄρει τεσσαράκοντα ἡμέρας καὶ τεσσαράκοντα νύκτας