Exodus 28:42-43

New American Standard Bible

⁴² You shall make for them ^(A)linen undergarments to cover their bare flesh; they shall ^[a]reach from the waist even to the thighs. ⁴³ And they shall be on Aaron and on his sons when they enter the tent of meeting, or ^(B)when they approach the altar to minister in the Holy Place, so that they do not incur ^[b]guilt and die. ^(C)It shall be a statute forever to him and to his ^[c]descendants after him.