Numbers 20:24-28

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

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

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

So Moses did just as the Lord had commanded, and they went up to Mount Hor in the sight of all the congregation.

And after Moses stripped Aaron of his garments and put them on his son Eleazar, Aaron died there on the mountain top. Then Moses and Eleazar came down from the mountain.