Bible Verses About Priests: Worn always while engaged in the service of the tabernacle

They shall be on Aaron, and on his sons, when they go in to the Tent of Meeting, or when they come near to the altar to minister in the holy place; that they don’t bear iniquity, and die: it shall be a statute forever to him and to his descendants after him.

the finely worked garments for ministering in the holy place, the holy garments for Aaron the priest, and the garments of his sons, to minister in the priest’s office.