Modern Judea: Comprised the Whole of the Ancient Kingdom of Judah
Source: TTT
1 Kings 12:21–24
And when Rehoboam arrived in Jerusalem, he mobilized the whole house of Judah and the tribe of Benjamin—180,000 chosen warriors—to fight against the house of Israel and restore the kingdom to Rehoboam son of Solomon. / But the word of God came to Shemaiah the man of God: / “Tell Rehoboam son of Solomon king of Judah, all the house of Judah and Benjamin, and the rest of the people