Leviticus 18:9-14

⁹Don't have sex with your sister, whether she's your father's daughter or your mother's daughter, or whether she was born in the same house as you or somewhere else.

¹⁰Don't have sex with your granddaughter, your son's daughter or your daughter's daughter, because that would be shameful thing for you.

¹¹Don't have sex with the daughter of any of your father's wives and your father, she is your sister.

¹²Don't have sex with your father's sister. She is a close relative of your father.

¹³Don't have sex with your mother's sister. She is a close relative of your mother.

¹⁴Don't bring shame on your uncle by having sex with his wife. She is your aunt.