New Revised Standard Version
Aaron and his sons shall wear them when they go into the tent of meeting, or when they come near the altar to minister in the holy place; or they will bring guilt on themselves and die. This shall be a perpetual ordinance for him and for his descendants after him.

Contemporary English Version
Whenever they enter the sacred tent or serve at the altar or enter the holy place, they must wear these shorts, or else they will be guilty and die. This same rule applies to any of their descendants who serve as priests.

New American Bible
Aaron and his sons shall wear them whenever they go into the tent of meeting or approach the altar to minister in the sanctuary, lest they incur guilt and die. This shall be a perpetual ordinance for him and for his descendants.

Douay-Rheims Bible
And Aaron and his sons shall use them when they shall go into the tabernacle of the testimony, or when they approach to the altar to minister in the sanctuary. lest being guilty of iniquity they die. It shall be a law for ever to Aaron, and to his seed after him.

And Aaron and his sons shall use them when they shall go into the tabernacle of the testimony, or when they approach to the altar to minister in the sanctuary. lest being guilty of iniquity they die. It shall be a law for ever to Aaron, and to his seed after him.

unto the altar

Exodus 20:26 Thou shalt not go up by steps unto my altar, lest thy nakedness be discovered.

bear not iniquity

Leviticus 5:1,17 If any one sin, and hear the voice of one swearing, and is a witness either because he himself hath seen, or is privy to it: if he do not utter it, he shall bear his iniquity. . . .

Leviticus 20:19,20 Thou shalt not uncover the nakedness of thy aunt by thy mother, and of thy aunt by thy father. He that doth this, hath uncovered the shame of his own flesh: both shall bear their iniquity. . . .

Leviticus 22:9 Let them keep my precepts, that they may not fall into sin, and die in the sanctuary, when they shall have defiled it. I am the Lord who sanctify them.

Numbers 9:13 But if any man is clean, and was not on a journey, and did not make the phase, that soul shall be cut off from among his people, because he offered not sacrifice to the Lord in due season: he shall bear his sin.

Numbers 18:22 That the children of Israel may not approach any more to the tabernacle, nor commit deadly sin,

Matthew 22:12,13 And he saith to him: Friend, how camest thou in hither not having on a wedding garment? But he was silent. . . .

a statute

Exodus 27:21 In the tabernacle of the testimony, without the veil that hangs before the testimony. And Aaron and his sons shall order it, that it may give light before the Lord until the morning. It shall be a perpetual observance throughout their successions among the children of Israel.

Leviticus 17:7 And they shall no more sacrifice their victims to devils, with whom they have committed fornication. It shall be an ordinance for ever to them and to their posterity.