The nakedness of thy son's daughter, or of thy daughter's daughter, even their nakedness thou shalt not uncover: for theirs is thine own nakedness. The nakedness of thy son's daughter, or of thy daughter's daughter. The reason assigned for prohibition in these cases is, that the parties are one's own flesh and blood.
Related Commentaries of Leviticus 18:10
Leviticus 18:10
10 The nakedness of thy son's daughter, or of thy daughter's daughter, even their nakedness thou shalt not uncover: for theirs is thine own nakedness.