Leviticus 20:17
"'If a man has sexual intercourse with his sister, whether the daughter of his father or his mother, so that he sees her nakedness and she sees his nakedness, it is a disgrace. They must be cut off in the sight of the children of their people. He has exposed his sister's nakedness; he will bear his punishment for iniquity.
Leviticus 18:9
You must not have sexual intercourse with your sister, whether she is your father's daughter or your mother's daughter, whether she is born in the same household or born outside it; you must not have sexual intercourse with either of them.
Deuteronomy 27:22
Cursed is the one who has sexual relations with his sister, the daughter of either his father or mother.' Then all the people will say, 'Amen!'
Genesis 20:12
What's more, she is indeed my sister, my father's daughter, but not my mother's daughter. She became my wife.
2 Samuel 13:12
But she said to him, "No, my brother! Don't humiliate me! This just isn't done in Israel! Don't do this foolish thing!
Ezekiel 22:11
One commits an abominable act with his neighbor's wife; another obscenely defiles his daughter-in-law; another violates his sister -- his father's daughter -- within you.
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