The Judean Kingdom
After the collapse of the Israelite kingdom, the Judean kingdom existed for still another 100 years, since among the Judean kings there were a few pious ones. In addition, the people remembered God more than in the Israelite kingdom. The prophets sent by God to the Judean kingdom exposed the evil deeds of the Jews and foretold much about the coming of the Saviour to earth. The Prophet Micah foretold that the Saviour would be born in the city of Bethlehem (Micah 5:2). The Prophet Joel foretold the descent of the Holy Spirit on the apostles and all those who believed in the Saviour.
(from: The Law of God