5And ye shall not shave your head for the dead with a baldness on the top; and they shall not shave their beard, neither shall they make gashes on their flesh.
6They shall be holy to their God, and they shall not profane the name of their God; for they offer the sacrifices of the Lord as the gifts of their God, and they shall be holy.
7They shall not take a woman who is a harlot and profaned, or a woman put away from her husband; for he is holy to the Lord his God.
Leviticus 21
Leviticus 21:5-7