Numbers 19:14

12 He shall purify himself with it on the third day, and on the seventh day he shall be clean: but if he purify not himself the third day, then the seventh day he shall not be clean.

13 Whosoever toucheth the dead body of any man that is dead, and purifieth not himself, defileth the tabernacle of the LORD; and that soul shall be cut off from Israel: because the water of separation was not sprinkled upon him, he shall be unclean; his uncleanness is yet upon him.

This is the law, when a man dieth in a tent: all that come into the tent, and all that is in the tent, shall be unclean seven days.

15 And every open vessel, which hath no covering bound upon it, is unclean.

16 And whosoever toucheth one that is slain with a sword in the open fields, or a dead body, or a bone of a man, or a grave, shall be unclean seven days.

This was said to Israel at a particular time, so it is wise to read it together with the surrounding text. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
This is the law when a person dies in a tent: Everyone who enters the tent and everyone already in the tent will be unclean for seven days,
KJV
This is the law, when a man dieth in a tent: all that come into the tent, and all that is in the tent, shall be unclean seven days.
WEB
“This is the law when a man dies in a tent: everyone who comes into the tent, and everyone who is in the tent, shall be unclean seven days.
ASV
This is the law when a man dieth in a tent: every one that cometh into the tent, and every one that is in the tent, shall be unclean seven days.
DARBY
This is the law, when a man dieth in a tent: every one that cometh into the tent, and all that is in the tent, shall be unclean seven days.
BLB
This [is] the law [of] the man when he dies in a tent: All who come into the tent and all who [are] in the tent shall be unclean seven days.
ÅB
Dette er loven: Når et menneske dør i et telt, skal hver den som kommer inn i teltet, og alt det som er i teltet, være urent i syv dager.
OTB
Dette er loven når en person dør i et telt: Enhver som går inn i teltet og enhver som er i det, vil være uren i syv dager.
B1930
Dette er loven: Når et menneske dør i et telt, skal hver den som kommer inn i teltet, og alt det som er i teltet, være urent i syv dager.

Study notes (Tyndale)

Original text and word study