'Nations' in the Bible

“Then they will deliver you to tribulation, and will kill you, and you will be hated by all nations because of My name.

This gospel of the kingdom shall be preached in the whole world as a testimony to all the nations, and then the end will come.

All the nations will be gathered before Him; and He will separate them from one another, as the shepherd separates the sheep from the goats;

Go therefore and make disciples of all the nations, baptizing them in the name of the Father and the Son and the Holy Spirit,