Numbers 20:22-26

22Now when they set out from Kadesh, the Israelites, the whole congregation, came to Mount Hor.

23Then the Lord spoke to Moses and Aaron at Mount Hor, by the border of the land of Edom, saying,

24“Aaron will be gathered to his people [in death]; for he shall not enter the land which I have given to the children of Israel, because you [both] rebelled against My command at the waters of Meribah.

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

26and strip Aaron of his garments and put them on Eleazar his son. So Aaron will be gathered to his fathers, and will die there.”