'Menstrual' in the Bible

He does not eat at the mountain shrines or raise his eyes to the idols of the house of Israel. He does not defile his neighbor’s wife or come near a woman during her menstrual impurity.

Men within you have sexual intercourse with their father’s wife and violate women during their menstrual impurity.

“Son of man, while the house of Israel lived in their land, they defiled it with their conduct and actions. Their behavior before Me was like menstrual impurity.