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.

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 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.