'Son's' in the Bible

[As for] the nakedness of your son's daughter or your daughter's daughter, you must not expose their nakedness, because they [are] your nakedness.

You must not expose your daughter-in-law's nakedness; she [is] your son's wife; you must not expose her nakedness.

You must not expose the nakedness of a woman and her daughter, or her son's daughter, or her daughter's daughter; you must not take [her as wife] to expose her nakedness; they [are] {close relatives}--that [is] wickedness.