Leviticus 18:8-10

The Voice

⁸ You are not to have sexual relations with your father’s wife; you might as well violate your father. ⁹ You are not to have sexual relations with your sister—whether she is your father’s daughter or mother’s daughter, regardless of where she has lived, with your family or elsewhere. ¹⁰ Do not have sexual relations with your son’s daughter or your daughter’s daughter; since they are your own flesh and blood, such an act would bring shame to you.