Exodus 28:41

28:41 “You are to clothe them – your brother Aaron and his sons with him – and anoint them and ordain them and set them apart as holy, so that they may minister as my priests.

Exodus 29:29

29:29 “The holy garments that belong to Aaron are to belong to his sons after him, so that they may be anointed in them and consecrated in them.

Exodus 29:33

29:33 They are to eat those things by which atonement was made to consecrate and to set them apart, but no one else may eat them, for they are holy.