Exodus 28:42-43 ▼

42 And make linen trousers for them to cover the naked flesh; they are from the loins even to the thighs;

43 and they have been on Aaron and on his sons in their going into the Tent of Meeting, or in their drawing near to the altar to minister in the holy place, and they do not bear iniquity nor have they died; [it is] a continuous statute to him and to his seed after him.”