'Nations' in the Bible

Jesus summoned them, and said to them, "You know that they who are recognized as rulers over the nations lord it over them, and their great ones exercise authority over them.

He taught, saying to them, "Isn't it written, 'My house will be called a house of prayer for all the nations?' But you have made it a den of robbers!"

The Good News must first be preached to all the nations.