Numbers 20:24-26

²⁴“Aaron will shortly join his forefathers in death. He will not enter the country I have given the Israelites, because you both disobeyed my command at the waters of Meribah.

²⁵Have Aaron and his son Eleazar join you and climb up Mount Hor together.

²⁶Take off Aaron's priestly clothes and put them on his son Eleazar. Aaron is going to die there and join his forefathers in death.”