Numbers 5:2; Numbers 9:6-7; Numbers 9:10; Numbers 18:15; Numbers 19:13; Numbers 19:17; Numbers 19:19; Numbers 19:22

2 Command the children of Israel, that they put out of the camp every leper , and every one that hath an issue , and whosoever is defiled by the dead:
6 And there were certain men, who were defiled by the dead body of a man, that they could not keep the passover on that day: and they came before Moses and before Aaron on that day: 7 And those men said unto him, We are defiled by the dead body of a man: wherefore are we kept back , that we may not offer an offering of the LORD in his appointed season among the children of Israel?
10 Speak unto the children of Israel, saying , If any man of you or of your posterity shall be unclean by reason of a dead body, or be in a journey afar off, yet he shall keep the passover unto the LORD.
15 Every thing that openeth the matrix in all flesh, which they bring unto the LORD, whether it be of men or beasts, shall be thine: nevertheless the firstborn of man shalt thou surely redeem , and the firstling of unclean beasts shalt thou redeem .
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.
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 thereto in a vessel:
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 even.
22 And whatsoever the unclean person toucheth shall be unclean ; and the soul that toucheth it shall be unclean until even.