Numbers 20:22-26

22Now the children of Israel, the whole congregation, journeyed from Kadesh and came to Mount Hor.

23And the Lord spoke to Moses and Aaron in Mount Hor by the border of the land of Edom, saying:

24“Aaron shall be gathered to his people, for he shall not enter the land which I have given to the children of Israel, because you rebelled against My word at the water 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; for Aaron shall be gathered to his people and die there.”