Numbers 19:13-16

¹³Whosoever toucheth the dead, even the body of any man that is dead, and purifieth not himself — he hath defiled the tabernacle of the LORD — that soul shall be cut off from Israel; because the water of sprinkling was not dashed against him, he shall be unclean; his uncleanness is yet upon him.

¹⁴This is the law: when a man dieth in a tent, every one that cometh into the tent, and every thing that is in the tent, shall be unclean seven days.

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

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