Numbers 20:27-29

Darby Translation

²⁷ And Moses did as Jehovah had commanded, and they went up mount Hor before the eyes of the whole assembly.

²⁸ And Moses stripped Aaron of his garments, and put them upon Eleazar his son; and Aaron died there upon the top of the mountain; and Moses and Eleazar came down from the mountain.

²⁹ And the whole assembly saw that Aaron was dead, and they mourned for Aaron thirty days, [even] the whole house of Israel.