Leviticus 18:10

The nakedness of thy father's wife shalt thou not uncover: it [is] thy father's nakedness.

The nakedness of thy sister, the daughter of thy father, or daughter of thy mother, [whether she be] born at home, or born abroad, [even] their nakedness thou shalt not uncover.

The nakedness of thy father's wife's daughter, begotten of thy father, she [is] thy sister, thou shalt not uncover her nakedness.

Thou shalt not uncover the nakedness of thy father's sister: she [is] thy father's near kinswoman.