Leviticus 21:9

9.And the daughter of any priest. The moderation and chastity (required in the priest (191)) is extended also to his daughter; and by synecdoche all that relates to good discipline is comprised under a single head; viz., that his children should be educated in the study of virtue, and in decent and pure morality. A heavy punishment is denounced against a priest’s daughter if she should play the harlot, because sacrilege would be combined with her disgraceful licentiousness. But it is no light crime to violate God’s sanctuary; and, if the priest had tolerated such an iniquity in his daughter, he would have been no severe avenger of the same turpitude in strangers; nay, he would not have been at liberty to punish crimes, unless he made a beginning in his own house.