'Laying' in the Bible

"If a man has sexual relations with a menstruating woman, he has exposed her nakedness, laying bare her fountain. He has exposed the source of her blood. Both are to be eliminated from contact with their people.

"You are not to have sexual relations with your mother's sister or your father's sister, because that is laying bare the nakedness of his close relative. They'll continue to bear responsibility for their iniquity.