5. When Cain had killed his brother Abel, God banished him from the _earth_ which had received his brother's blood and laid a curse on him: "a fugitive and a vagabond shalt thou be in the _earth_"--using another word than the first time, one which means earth in general (_erec_), in opposition to _the_ earth (_adamah_), or fruitful land to the east of Eden, in which Adam and Eve dwelt after their expulsion. Then Cain went forth, still further East, and dwelt in a land which was called "the land of Nod," _i.e._, "of wandering" or "exile." He had a son, Enoch, after whom he named the city which he built,--the first city,--and descendants. Of these the fifth, Lamech, a fierce and lawless man, had three sons, two of whom, Jabal and Jubal, led a pastoral and nomadic life; but the third, Tubalcain, invented the use of metals: he was "the forger of every cutting instrument of brass and iron." This is what the Chap. IV. of Genesis tells of Cain, his crime, his exile and immediate posterity. After that they are heard of no more. Adam, meanwhile, has a third son, born after he had lost the first two and whom he calls Seth (more correctly _Sheth_). The descendants of this son are enumerated in Chap. V.; the list ends with Noah. These are the parallel races: the accursed and the blest, the proscribed of God and the loved of God, the one that "goes out of the presence of the Lord" and the one that "calls on the name of the Lord," and "walks with God." Of the latter race the last-named, Noah, is "a just man, perfect in his generation," and "finds grace in the eyes of the Lord." 6. Then comes the narrative of the Flood (Chap. VI.-VIII.), the covenant of God with Noah and re-peopling of the earth by his posterity (Chap. IX.). Lastly Chap. X. gives us the list of the generations of Noah's three sons, Shem, Ham and Japhet;--"of these were the nations divided in the earth after the flood."