'Lewdness' in the Bible

You shall not uncover the nakedness of a woman and of her daughter, nor shall you take her son’s daughter or her daughter’s daughter, to uncover her nakedness; they are blood relatives. It is lewdness.

‘Do not profane your daughter by making her a harlot, so that the land will not fall to harlotry and the land become full of lewdness.

If a man has sexual intercourse with both a woman and her mother, it is lewdness. Both he and they must be burned to death, so there is no lewdness in your midst.