Numbers 20:26-28

20:26 Remove Aaron’s priestly garments and put them on Eleazar his son, and Aaron will be gathered to his ancestors and will die there.”

20:27 So Moses did as the Lord commanded; and they went up Mount Hor in the sight of the whole community. 20:28 And Moses removed Aaron’s garments and put them on his son Eleazar. So Aaron died there on the top of the mountain. And Moses and Eleazar came down from the mountain.