Numbers 20:22-26

22And they journeyed from Kadesh: and the children of Israel, even the whole congregation, came unto mount Hor. 23And Jehovah spake unto Moses and Aaron in mount Hor, by the border of the land of Edom, saying, 24Aaron shall be gathered unto his people; for he shall not enter into the land which I have given unto the children of Israel, because ye rebelled against my word at the waters of Meribah. 25Take Aaron and Eleazar his son, and bring them up unto mount Hor; 26and strip Aaron of his garments, and put them upon Eleazar his son: and Aaron shall be gathered unto his people, and shall die there.