Merhaba, Atilla. The sons of Lot's daughters became the ancestors of the Moabites and Ammonites, not the Israelites. So the Jews are not part of the progeny of the incestuous father-daughters relationship. But if you believe that we are all descended from Adam and Eve, then we are all products of an initial incestuous relationship between Adam and Eve (one flesh), then their son married his sister, although no daughter of Adam and Eve is mentioned, but where did this wife originate? Did God create more humans in the land of Nod? Cain's wife had to have been his sister. Marriages between family members were apparently accepted in the earliest times, before hereditary diseases set in.
Brazilian head of UN peacekeeping force in Haiti dies of heart attack (Reuters)
from the article: A Vietnam called Gaza