Leviticus 22:9
They are to keep my charge. By doing so, they won't bear the punishment of sin because of it and therefore die if they've been defiled by it. I am the LORD, who sets them apart."
Exodus 28:43
They shall be on Aaron and his sons when they enter the Tent of Meeting or when they approach the altar to minister in the Holy Place so they don't incur guilt and die. This is to be a perpetual ordinance for him and for his descendants after him."
Numbers 18:22
Therefore, the Israelis need no longer come to the Tent of Meeting, so they won't suffer the consequences of their sin and die.
Leviticus 10:1-2
Aaron's sons Nadab and Abihu each took his own censer, placed fire in it, covered it with incense, and brought it into the LORD's presence as unauthorized fire that he had never prescribed for them.
Leviticus 16:2
The LORD told Moses, "Remind your brother Aaron that at no time is he to enter the sacred place from the room that contains the curtain into the presence of the Mercy Seat on top of the ark. Otherwise, he'll die, because I will appear in a cloud at the Mercy Seat.
Leviticus 22:16
thereby causing them to bear the punishment of their iniquity for wrongdoing when they eat their sacred things, because I am the LORD, who sets them apart."
Numbers 18:32
You won't sin by offering the best of it, and you are not to profane the sacred things of the Israelis, so that you won't die."