'Nations of the Earth' in the Bible

"since Abraham's descendants will become a great and powerful nation, and all the nations of the earth will be blessed through him?

Furthermore, through your descendants all the nations of the earth will be blessed, because you have obeyed my command."

I'll cause you to have as many descendants as the stars of the heavens, and I'll certainly give all these lands to your descendants. Later on, through your descendants all the nations of the earth will bless one another.