Leviticus 21:1–4

And the Lord said to Moses, “Speak to the priests, the sons of Aaron, and say to them, No one shall make himself unclean for the dead among his people, except for his closest relatives, his mother, his father, his son, his daughter, his brother, or his virgin sister (who is near to him because she has had no husband; for her he may make himself unclean). He shall not make himself unclean as a husband among his people and so profane himself.

The Lord said to Moses, “Speak to the priests, the sons of Aaron, and say to them: ‘A priest must not make himself ceremonially unclean for any of his people who die, except for a close relative, such as his mother or father, his son or daughter, his brother, or an unmarried sister who is dependent on him since she has no husband—for her he may make himself unclean. He must not make himself unclean for people related to him by marriage, and so defile himself.

The Lord said to Moses, “Speak to Aaron’s sons, the priests, and tell them: A priest is not to make himself ceremonially unclean for a dead person among his relatives, except for his immediate family: his mother, father, son, daughter, or brother. He may make himself unclean for his unmarried virgin sister in his immediate family. He is not to make himself unclean for those related to him by marriage and so defile himself.

The Lord said to Moses, “Give the following instructions to the priests, the descendants of Aaron.

“A priest must not make himself ceremonially unclean by touching the dead body of a relative. The only exceptions are his closest relatives—his mother or father, son or daughter, brother, or his virgin sister who depends on him because she has no husband. But a priest must not defile himself and make himself unclean for someone who is related to him only by marriage.

Then Yahweh said to Moses, “Speak to the priests, Aaron’s sons, and say to them, ‘One must not make himself unclean for a dead person among his own people, except for his direct relative closest to him: his mother and his father, and his son and his daughter, and his brother, and for his sister, a virgin, who is closest to him, who has not had a husband—for her he may defile himself. He must not make himself unclean as a kinsman by marriage, defiling himself.

And the Lord said unto Moses, Speak unto the priests the sons of Aaron, and say unto them, There shall none be defiled for the dead among his people: But for his kin, that is near unto him, that is, for his mother, and for his father, and for his son, and for his daughter, and for his brother, And for his sister a virgin, that is nigh unto him, which hath had no husband; for her may he be defiled. But he shall not defile himself, being a chief man among his people, to profane himself.