Of his garments, to wit, of his priestly garments, Exodus 28:2 Leviticus 8:7-9, in token of his resignation of his office. See the like Isaiah 22:15,Isaiah 22:19-21. Put them upon Eleazar, by way of admission and inauguration of him to his office.
Related Commentaries of Numbers 20:26
Numbers 20:26
26 And strip Aaron of his garments, and put them upon Eleazar his son: and Aaron shall be gathered unto his people, and shall die there.