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

and they have been on Aaron and on his sons, in their going in unto the tent of meeting, or in their drawing nigh unto the altar to minister in the sanctuary, and they do not bear iniquity nor have they died; a statute age-during to him, and to his seed after him.

the coloured clothes to minister in the sanctuary, the holy garments for Aaron the priest, and the garments of his sons, to act as priest in.