Exod.28.43

And they shall be upon Aaron, and upon his sons, when they come in unto the tabernacle of the congregation, or when they come near unto the altar to minister in the holy place; that they bear not iniquity, and die: it shall be a statute for ever unto him and his seed after him.

Exod.28.43

Aaron and his sons must wear it whenever they enter the Tent of Meeting or approach the Altar to minister in the Holy Place so that they won't incur guilt and die. This is a permanent rule for Aaron and all his priest-descendants.

Exod.28.43

They shall be on Aaron and on his sons when they come into the tabernacle of meeting, or when they come near the altar to minister in the holy place, that they do not incur iniquity and die. It shall be a statute forever to him and his descendants after him.

Exod.28.43

These must be worn whenever Aaron and his sons enter the Tabernacle or approach the altar in the Holy Place to perform their duties. Thus they will not incur guilt and die. This law is permanent for Aaron and his descendants.