11:2.And the sons of Noah began to war on each other, to take captive and to slay each other, and to shed the blood of men on the earth, and to eat blood, and to build strong cities, and walls, and towers, and individuals (began) to exalt themselves above the nation, and to found the beginnings of kingdoms, and to go to war people against people, and nation against nation, and city against city, and all (began) to do evil, and to acquire arms, and to teach their sons war, and they began to capture cities, and to sell male and female slaves.
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