And if a man shall lie with a woman having her sickness, and shall uncover her nakedness; he has made naked her fountain, and she has uncovered the fountain of her blood: and both of them shall be cut off from among their people.
All Commentaries on Leviticus 20:18 Go To Leviticus 20
George Leo Haydock
AD 1849
People, if the action become public; otherwise the man may be purified, chap xv. 24. This intemperance was by a positive law declared a mortal offence in the Jews, though in itself it might be venial. (Sanchez ix. 21.) The text shows that the woman here gives her consent.
And she open. Hence she deserves to die, for exposing herself and her children to great danger. (Haydock)