Numbers 20:23 WEB

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

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

²³  Yahweh 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.

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