'Dispersion' in the Bible

The Jews therefore said to one another, Where is he about to go that we shall not find him? Is he about to go to the dispersion among the Greeks, and teach the Greeks?

James, bondman of God and of the Lord Jesus Christ, to the twelve tribes which are in the dispersion, greeting.

Peter, apostle of Jesus Christ, to the sojourners of the dispersion of Pontus, Galatia, Cappadocia, Asia, and Bithynia,