Genesis chapter 4
"13 And Cain said unto the LORD, My punishment is greater than I can bear. 14 Behold, thou hast driven me out this day from the face of the earth; and from thy face shall I be hid; and I shall be a fugitive (who was he hiding from if there weren't other people?) and a vagabond in the earth; and it shall come to pass, that every one that findeth me shall slay me. (Other people+ death penalty for murder = a legal system, this was a sophisticated society.)
15 And the LORD said unto him, Therefore whosoever slayeth Cain, vengeance shall be taken on him sevenfold. And the LORD set a mark upon Cain, lest any finding him should kill him. (There were other people, he was not in isolation.)
16 And Cain went out from the presence of the LORD ( meaning they were pagans), and dwelt in the land of Nod (this was the Kenite tribe - Jewish Encyclopaedia) on the east of Eden. The father-in-law of Moses was from this tribe, but that was much later.
17And Cain knew his wife; and she conceived, and bare Enoch: and he builded a city, and called the name of the city, after the name of his son, Enoch. (Cain had a wife who wasn't his mother, they were building walled cities which is dating evidence, cities were built for people and walled cities, similar to Jericho, were built for defence against other people and other nations.)
18 And unto Enoch was born Irad: and Irad begat Mehujael: and Mehujael begat Methusael: and Methusael begat Lamech.19And Lamech took unto him two wives: the name of the one was Adah, and the name of the other Zillah. 20And Adah bare Jabal: he was the father of such as dwell in tents, and of such as have cattle. (They were tent dwellers, our ancestors were cave dwellers and they were farmers rather than their ancestors who were hunter gatherers. Cain was a farmer and Able was a shepherd)
21 And his brother's name was Jubal: he was the father of all such as handle the harp and organ. (Early man did not have sophisticated musical instruments, neither could they make fire.)
22 And Zillah, she also bare Tubalcain, an instructor of every artificer in brass and iron: and the sister of Tubalcain was Naamah. (Brass and iron, early man used stone tools i.e. the stone age. This is the bronze age that came much later.)
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