Deuteronomy 27:22
"'Cursed be anyone who lies with his sister, whether the daughter of his father or the daughter of his mother.' And all the people shall say, 'Amen.'
Leviticus 18:9
You shall not uncover the nakedness of your sister, your father's daughter or your mother's daughter, whether brought up in the family or in another home.
Leviticus 20:17
"If a man takes his sister, a daughter of his father or a daughter of his mother, and sees her nakedness, and she sees his nakedness, it is a disgrace, and they shall be cut off in the sight of the children of their people. He has uncovered his sister's nakedness, and he shall bear his iniquity.
Ezekiel 22:11
One commits abomination with his neighbor's wife; another lewdly defiles his daughter-in-law; another in you violates his sister, his father's daughter.
2 Samuel 13:1
Now Absalom, David's son, had a beautiful sister, whose name was Tamar. And after a time Amnon, David's son, loved her.
2 Samuel 13:8-14
So Tamar went to her brother Amnon's house, where he was lying down. And she took dough and kneaded it and made cakes in his sight and baked the cakes.