Then Abram said, ‘Look, You have given me no offspring; indeed one born in my house is my heir!’ And behold, the word of the LORD came to him, saying, ‘This one shall not be your heir, but one who will come from your own body shall be your heir.’ –Genesis 15:3-4
When God asked him to get out of his country, his family and his father’s house, it was into the covenant of blessings. The Lord promised to make him a great nation and make his name great. Everyone who blessed him was to be blessed and everyone who cursed him was to be cursed. In him all the families of the earth were to be blessed.