Leviticus 15:33

and of her that is sick of her flowers, with the menstrual flow, and of him that hath an issue, of the man, and of the woman, and of him that lieth with her that is unclean. Christian spouses will keep in mind at all times that they know how to possess their organs and vessels in sanctification and honor, not in the loathsome lust of concupiscence, as the Gentiles that know not God, 1 Thessalonians 4:4.