Leviticus 20:17, 19-20

“If a man marries his sister, the daughter of either his father or mother, and they have sex, that’s a disgrace. They must be publicly cut off from their people. He has violated his sister and will be held responsible.

“Don’t have sex with your aunt on either your mother’s or father’s side. That violates a close relative. Both of you are held responsible. “If a man has sex with his aunt, he has dishonored his uncle. They will be held responsible and die childless.