Leviticus 20:17-19

Contemporary English Version

^17 (A) If you marry one of your sisters, you will be punished, and the two of you will be disgraced by being openly forced out of the community. ^18 (B) If you have sex with a woman during her monthly period, both you and the woman will be cut off from the people of Israel. ^19 (C) The sisters of your father and mother are your own relatives, and you will be punished for having sex with any of them.