Numbers 20:22-28

²²And when they had removed the camp from Cades, they came to mount Her, which is in the borders of the land of Edom:

²³Where the Lord spoke to Moses:

²⁴Let Aaron, saith he, go to his people: for he shall not go into the land which I have given the children of Israel, because he was incredulous to my words, at the waters of contradiction.

²⁵Take Aaron and his son with him, and bring them up into mount Hor:

²⁶And when thou hast stripped the father of his vesture, thou shalt vest therewith Eleazar his son: Aaron shall be gathered to his people, and die there.

²⁷Moses did as the Lord had commanded: and they went up into mount Hor before all the multitude.

²⁸And when he had stripped Aaron of his vestments, he vested Eleazar his son with them.