Numbers 19:16

13 Whoever 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.

14 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 whoever 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.

17 And for an unclean [person] they shall take of the ashes of the burnt heifer of purification for sin, and running water shall be put to it in a vessel:

18 And a clean person shall take hyssop, and dip [it] in the water, and sprinkle [it] upon the tent, and upon all the vessels, and upon the persons that were there, and upon him that touched a bone, or one slain, or one dead, or a grave:

19 And the clean [person] shall sprinkle upon the unclean on the third day, and on the seventh day: and on the seventh day he shall purify himself, and wash his clothes, and bathe himself in water, and shall be clean at evening.