Exodus 28:42-43

New Revised Standard Version Updated Edition

⁴² You shall make for them linen undergarments to cover their naked flesh; they shall reach from the hips to the thighs;^{(A) 43} They shall be worn by Aaron and his sons when they go into the tent of meeting or when they come near the altar to minister in the holy place, so that they do not bring guilt on themselves and die. This shall be a perpetual ordinance for him and for his descendants after him.^(B)