Numbers 20:23

21Thus Edom refused to give Israel passage through his border, so Israel turned away from him.

22They traveled from Kadesh, and the children of Israel, even the whole congregation, came to Mount Hor.

23The LORD spoke to Moses and Aaron in Mount Hor, by the border of the land of Edom, saying,

24“Aaron shall be gathered to his people; for he shall not enter into the land which I have given to the children of Israel, because you rebelled against my word at the waters of Meribah.

25Take Aaron and Eleazar his son, and bring them up to Mount Hor;