This was God’s promise to Abraham in Genesis 13:14-15 and ultimately it is our promise because of Jesus. All who place faith in Christ become the descendants of Abraham and inherit the promises made to Abraham.
“So then you are no longer strangers and aliens, but you are fellow citizens with the saints and members of the household of God” (Ephesians 2:19).
“This mystery is that the Gentiles are fellow heirs, members of the same body, and partakers of the promise in Christ Jesus through the gospel” (Ephesians 3:6)
All the promises made to Abraham find their ultimate fulfillment in Christ. So one day we will all inherit the earth.
“It shall come to pass in latter days that the mountain of the house of the Lord shall be established as the highest of the mountains, and shall be lifted up above the hills; and all the nations shall flow to it, and many peoples shall come, and say: ‘Come, let us go up to the mountain of the Lord, to the house of the God of Jacob, that he may teach us his ways and that we may walk in his paths’ ” (Isaiah 2:2-3a).
“Then I saw a new heaven and a new earth, for the first heaven and the first earth had passed away” (Revelation 21:1a).