LXX Deut 32:50

καὶ τελεύτα ἐν τῷ ὄρει εἰς ὃ ἀναβαίνεις ἐκεῖ, καὶ προστέθητι πρὸς τὸν λαόν σου, ὅν τρόπον ἀπέθανεν Ἀαρὼν ὁ ἀδελφός σου ἐν Ὥρ τῷ ὄρει καὶ προσετέθη πρὸς τὸν λαὸν αὐτοῦ.

And there on the mountain that you climb, you will die and be gathered to your people, just as your brother Aaron died on Mount Hor and was gathered to his people.