In Genesis 22:1-19, and particularly verses 15-19, we see the confirmation of the climactic promise made to Abraham: the blessing of the nations. Here at the end of the Abrahamic narrative, at the climactic point of the climactic narrative we are told that the nations will be blessed, but with one new addition: it will be in Abraham's singular seed that this will happen. This singular seed is Christ, the Savior of the world, in whom all the nations of the earth are blessed.