Leviticus 18:19
Context18:19 “‘You must not approach a woman in her menstrual impurity 1 to have sexual intercourse with her.
Leviticus 20:18
Context20:18 If a man has sexual intercourse with a menstruating woman and uncovers her nakedness, he has laid bare her fountain of blood and she has exposed the fountain of her blood, so both of them 2 must be cut off from the midst of their people.