“This is the offering of Aaron and his sons which they must present to the Lord on the day when he is anointed: a tenth of an ephah ¹  of choice wheat flour ²  as a continual grain offering, half of it in the morning and half of it in the evening.

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 

You must not have sexual intercourse with your sister, whether she is your father’s daughter or your mother’s daughter, ¹  whether she is born in the same household or born outside it; ²  you must not have sexual intercourse with either of them. ³