Deuteronomy 27:22
'Cursed is he who lies with his sister, the daughter of his father, or the daughter of his mother.' All the people shall say, 'Amen.'
Leviticus 18:9
"'You shall not uncover the nakedness of your sister, the daughter of your father, or the daughter of your mother, whether born at home, or born abroad.
Leviticus 20:17
"'If a man takes his sister, his father's daughter, or his mother's daughter, and sees her nakedness, and she sees his nakedness; it is a shameful thing; and they shall be cut off in the sight of the children of their people: he has uncovered his sister's nakedness; he shall bear his iniquity.
Ezekiel 22:11
One has committed abomination with his neighbor's wife; and another has lewdly defiled his daughter-in-law; and another in you has humbled his sister, his father's daughter.
2 Samuel 13:1
It happened after this, that Absalom the son of David had a beautiful sister, whose name was Tamar; and Amnon the son of David loved her.
2 Samuel 13:8-14
So Tamar went to her brother Amnon's house; and he was laid down. She took dough, and kneaded it, and made cakes in his sight, and baked the cakes.