'Son's' in the Bible

You are not to have sexual intercourse with your son’s daughter or your daughter’s daughter, because it will shame your family.

You are not to have sexual intercourse with your daughter-in-law. She is your son’s wife; you are not to have sex with her.

You are not to have sexual intercourse with a woman and her daughter. You are not to marry her son’s daughter or her daughter’s daughter and have sex with her. They are close relatives; it is depraved.