Moses made it easy to understand the outline of Genesis. He uses the phrase "These are the generations of..." ten times. The first two contrast the despotic kings with the believing line of Adam and culminate with the judgment in the Flood (Gn 2:4, 5:1, 6:9). The next two contrast the kingdoms of this world with the kingdom people of God. They bring the reader to the kingdom promises made to Abraham.
Abraham is the center of the outline. There are five sections that lead up to him, and he is the first of the second five. The Abrahamic Covenant is central to Genesis. The next four sections contrast the Patriarchs of the kingdom with the unbelieving line.