'Nations' in the Bible

Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.

And this gospel of the kingdom shall be preached in all the world for a witness unto all nations; and then shall the end come.

And before him shall be gathered all nations: and he shall separate them one from another, as a shepherd divideth his sheep from the goats:

Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: