God gives him a triple promise and from this moment, God focuses on a nation, Israel, through whom he would progressively fulfill his plan of redemption, which comes to be the second most significant and important theme in this book. The triple promise is that God will give a land to his people, Abraham would be the seed of Israel’s descendants, and God promise to bless Abraham and his descendants. The rest of Scripture focuses on the fulfillment of these promises. Definitely, Genesis emphasizes that the Lord does not act arbitrarily in choosing Abraham, but his election is part of a plan of salvation that extends to the entire world. The ultimate object of this plan is manifested in the symbolic act of the change of the primitive name of
