The central human figure of Genesis 12-23 is Abraham, but this is no mere biography of Abraham. It is a story of faith and sin on his part and the story of the astonishing promise of the LORD to bless all the families of the earth through him, even through the one seed which God will produce from him, the Lord Jesus Christ. The promise of the worldwide blessing in Abram is more specified to be the promise in his seed. All of God’s promises to him ultimately culminates in that final seed of Abraham. The seed of the woman is the seed of Abraham and it is in Him that the blessing of God comes upon all of God’s people from all the nations.