Leviticus 20:17 References

17 'aIf there is a man who takes his sister, his father's daughter or his mother's daughter, so that he sees her nakedness and she sees his nakedness, it is a disgrace; and they shall be cut off in the sight of the sons of their people. He has uncovered his sister's nakedness; he bears his guilt.

a Leviticus 18:9, Deuteronomy 27:22

Leviticus 18

9 'aThe nakedness of your sister, either your father's daughter or your mother's daughter, whether born at home or born outside, their nakedness you shall not uncover.

Deuteronomy 27

22 'aCursed is he who lies with his sister, the daughter of his father or of his mother.' And all the people shall say, 'Amen.'