Numbers 19:15-17

Christian Standard Bible

¹⁵ and any open container without a lid tied on it is unclean. ¹⁶ Anyone 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. ¹⁷ For the purification of the unclean person, they are to take some of the ashes of the burnt sin offering, put them in a jar, and add fresh water to them.