The Abrahamic covenant includes national promises of great material wealth and prosperity.
Genesis 27:28-29 And may God give you of the dew of heaven [abundant
rainfall] and of the fatness [rich places] of the earth, and plenty
[an abundance]
of grain and wine. Let people serve you, and let nations bow down to you. Be lord [rule] over your brethren, and let your mother’s sons bow down to you. Cursed be everyone that curses you, and blessed be he that blesses you.
The dew of heaven and fatness of the earth, point to rich, fertile lands producing an abundance of agricultural resources. The phrase: let nations bow down to you, clearly speaks of geopolitical dominance and prestige—on at least a regional level, if not worldwide. As history would prove, Jacob did rule overthe descendants of his brother, Esau.
Isaac continued blessing Jacob in Genesis 28:3-4 And may God Almighty bless you, and make you fruitful and multiply you, so that you may be a multitude of people and may He give you the [covenant] blessing of Abraham, to you and to your seed with you, so that you may inherit the land in which you are a stranger, which God gave to
Abraham.
Later, God confirmed the promises to Jacob in a dream: Genesis 28:13-15 I am the LORD, the God of Abraham your father, and the God of Isaac. The land on which you lie I will give to you and to your seed. And your seed shall be like the dust of the
earth, and you shall spread abroad to the west and to the east and to the north and to the south. And in you and in your seed shall all the families of the earth be blessed. [thru Jesus, the Messiah]. And, behold, I am with you, and will keep you in every place where you go, and will bring you again into this land, for I will not leave you until I have done that which I have spoken of to you.
In the Hebrew; to spread abroad, means literally: to break forth—in all directions, to the north, south, east, and west—around the world. This passage suggests colonization, placing no limits on how much land God would ultimately give to Abraham’s descendants. Beautifully fulfilled by Great Britain and the USA.
In the end, how much landwould be included in the Abrahamic promises?
Romans 4:13 It was not through the Law that Abraham and his descendants were given the Promise of the world being their inheritance, but through righteousness that comes by faith. Isaiah 51:1-2
In the Millennium age to come, the covenant promises to Abraham will reach their zenith. At that time, a restored and united Kingdom of Israel will be God’s model nation; to which all nations will seek. The new nation of Beulah, Isaiah 62:1-5, will form the foundation of the Kingdom of God, which will grow to ‘leaven’ the entire earth. Matthew 13:33
In time, all of remaining mankindwill be included as Abraham’s spiritual children. Ultimately, then; the Abrahamic promises are to include the entire world!
Ref: Philip Neal
The Prophetic Word 