Numbers 20:25-28

25Moses, you must take Aaron and his son Eleazar to climb up Hor mountain.

26Take the priest's clothes from Aaron and put them on Eleazar. Aaron will die there.’

27Moses did what the Lord told him to do. Moses, Aaron and Eleazar climbed up Hor mountain, while the Israelites watched.

28Moses took the priest's clothes from Aaron and he put them on Eleazar. Then Aaron died there, at the top of the mountain. Moses and Eleazar walked back down the mountain.