More on La Peyrere - (not to say of course that he was at all right about anything...), and to explain why I thought it was out of the "flood" context...
Cain’s wife’s origin: why it matters!
In the 17 th century, some Bible expositors, it seems, could not answer the question of where Cain got his wife. 1 One such was Isaac La Peyrère, a Jewish convert to Catholicism from Bordeaux. 2 To solve what he considered to be a problem, he proposed that Cain’s wife and the inhabitants of Cain’s city all came not from Adam but from pre-Adamic stock—beings who had lived in ‘the indefinite amount of time before Adam’. 3
He said that Adam was the first Jew and the father of the Jews, but not the father of mankind, so it is not surprising that La Peyrère rejected the doctrine of Original Sin, i.e. that innate depravity is transmitted to all mankind because of Adam’s sin. He said that in the world to come everyone would be saved (universalism). He also argued that Eve was not the first woman, but the first Jewish woman, wife and mother. To explain the presence of Gentiles post-Flood, and to avoid the conclusion that they were all descendants of Noah and his family, he said that the Flood was local, not global. The Gentiles were descended from various pre-Adamites, not from Adam. This polygenesis of the Gentiles was his method of explaining the existence of the Negroes, Chinese, Eskimos, American Indians, Malays and other people groups being discovered.
He also denied that Moses wrote the Pentateuch (i.e. Genesis to Deuteronomy), and he questioned both the accuracy of Genesis and the authenticity of the Biblical text. Although he was soundly refuted by Jewish and Protestant theologians, and declared to be a heretic by the Catholic Church, his questioning of the authority and accuracy of the Bible was the beginning of modern biblioscepticism. From it came the so-called modern ‘higher criticism’ of the Bible.
In the 20 th century, the claim that other-colored people originated from pre-Adamites has been a key pillar for theistically inclined ‘white’ racists. 4 These have included British Israelites, Christian Identity, and some factions of the Ku Klux Klan. 5 What an incredible legacy of hate derives from the failure of the leaders of these organizations to correctly answer the matter of who Cain’s wife was!
A little off the subject, but out of "intellectual honesty" here it is...