Deuteronomy 27:23
Cursed is he who indulges in sex with his mother-in-law. And all the people say: Amen.
Leviticus 20:14
When a man marries a woman and her mother, they have done a perverted thing. The man and the two women must be burned. Never do this perverted thing.
Leviticus 18:17
Do not have sexual intercourse with a woman and her daughter or a woman and her granddaughter. They are related. Doing this is perverted.
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