Discovery BoxLeviticus 18:11 
Context18:11 You must not have sexual intercourse with the daughter of your father’s wife born of your father; she is your sister. You must not have intercourse with her. 1
Leviticus 20:11
Context20:11 If a man has sexual intercourse with his father’s wife, he has exposed his father’s nakedness. 2 Both of them must be put to death; their blood guilt is on themselves. 3
1 tn Heb “The nakedness of the daughter of your father’s wife born of your father, she is your sister; you must not uncover her nakedness.” That is, a half sister, the daughter of the man’s father by another wife, who is not the man’s mother, is to be considered a true sister. Therefore, the man must not have sexual intercourse with her.
