One of the significant changes in the emphasis that occurs at this point in Genesis is from cursing in the primeval record to blessing in the patriarchal narratives. The Abrahamic Covenant is most important in this respect. How Abram's family gained these blessings unfolds. Israel could, and we can, identify with their experiences.
"Chapters 1-11 are set in Babylonia; chs. 12-36 are set in Palestine; chs. 37-50 are set in Egypt. (The same kind of tripartite geographical focus emerges from Exodus: [1] 1:1-12:36, in Egypt; [2] 12:37-18:27, to Sinai; [3] 19:1-40:38, at Sinai.) In other words, each part of the Mediterranean world is highlighted in some part of Genesis. The crucial center section of Genesis (chs. 12-36) is bracketed geographically by two sections of the Near Eastern world with whose history that of Israel would be constantly interlocked. . . .
"In chs. 1-11 we read of individuals who had land, but are either losing it or being expelled from it. In chs. 12-50 the emphasis is on individuals who do not have land, but are on the way toward it. One group is losing; another group is expecting.
"Genesis is moving us progressively from generation (chs. 1-2), to degeneration (chs. 3-11), to regeneration (chs. 12-50)."393
Chapters 1-11 present a structural pattern that carries over into the rest of the Pentateuch.
"The importance of Genesis 1-11 for the rest of the Pentateuch can be seen in the fact that its narrative structure provides a pattern by which the author often shapes subsequent pentateuchal narratives. Thus the order and arrangement of the Creation accounts in Genesis 1-2 exhibit the same pattern as the description of the building of the tabernacle (Ex 25-31); the tabernacle is portrayed as a return to the Garden of Eden. The instructions given to Noah for building the ark foreshadow those given to Moses for building the tabernacle. Furthermore, one can demonstrate that whole sections of laws in the Pentateuch have been grouped and arranged in patterns that parallel the narrative structure of Genesis 1-11."394
"The ancient oriental background to Gen 1-11 shows it to be concerned with rather different issues from those that tend to preoccupy modern readers. It is affirming the unity of God in the face of polytheism, his justice rather than his caprice, his power as opposed to his impotence, his concern for mankind rather than his exploitation. And whereas Mesopotamia clung to the wisdom of primeval man, Genesis records his sinful disobedience. Because as Christians we tend to assume these points in our theology, we often fail to recognize the striking originality of the message of Gen 1-11 and concentrate on subsidiary points that may well be of less moment."395
Some notable changes take place in the second part of Genesis. Instead of the genealogies being prominent and the stories secondary, as in chapters 1-11, the reverse becomes true now. God retreats farther into the background of the events recorded than was the case earlier, and there is corresponding emphasis on the personalities of the patriarchs. The promises to the patriarchs form the central theme of this section, especially those concerning descendants, land, and divine blessing. There also seems to be increasing depth in the moral awareness of the patriarchs as generation follows generation from Abram to Joseph.396