Leviticus 21:1-11

1 And the LORD said to Moses, "Speak to the priests, the sons of Aaron, and say to them that none of them shall defile himself for the dead among his people,
2 except for his nearest of kin, his mother, his father, his son, his daughter, his brother,
3 or his virgin sister (who is near to him because she has had no husband; for her he may defile himself).
4 He shall not defile himself as a husband among his people and so profane himself.
5 They shall not make tonsures upon their heads, nor shave off the edges of their beards, nor make any cuttings in their flesh.
6 They shall be holy to their God, and not profane the name of their God; for they offer the offerings by fire to the LORD, the bread of their God; therefore they shall be holy.
7 They shall not marry a harlot or a woman who has been defiled; neither shall they marry a woman divorced from her husband; for the priest is holy to his God.
8 You shall consecrate him, for he offers the bread of your God; he shall be holy to you; for I the LORD, who sanctify you, am holy.
9 And the daughter of any priest, if she profanes herself by playing the harlot, profanes her father; she shall be burned with fire.
10 "The priest who is chief among his brethren, upon whose head the anointing oil is poured, and who has been consecrated to wear the garments, shall not let the hair of his head hang loose, nor rend his clothes;
11 he shall not go in to any dead body, nor defile himself, even for his father or for his mother;
Revised Standard Version of the Bible, copyright 1952 [2nd edition, 1971] by the Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.