Numbers 19:11-16

11“The person who touches any human corpse will be unclean for seven days.

12He is to purify himself with the water on the third day and the seventh day; then he will be clean. But if he does not purify himself on the third and seventh days, he will not be clean.

13Anyone who touches a body of a person who has died, and does not purify himself, defiles the tabernacle of the Lord. That person will be cut off from Israel. He remains unclean because the water for impurity has not been sprinkled on him, and his uncleanness is still on him.

14“This is the law when a person dies in a tent: everyone who enters the tent and everyone who is already in the tent will be unclean for seven days,

15and any open container without a lid tied on it is unclean.

16Anyone in the open field who touches a person who has been killed by the sword or has died, or who even touches a human bone, or a grave, will be unclean for seven days.