'House of Judah' in the Bible

And when Rehoboam had entered Jerusalem, he called together the house of Judah and Benjamin, a hundred and eighty thousand chosen men, warriors, - to fight against Israel, to bring back the kingdom to Rehoboam.

And lo! Amariah the chief priest, is over you as to every matter of Yahweh, and Zebadiah son of Ishmael the chief ruler for the house of Judah, as to every matter of the king, and, as officers, the Levites are before you, - Be strong and act, and Yahweh be with the good!

But, when, Athaliah mother of Ahaziah, saw that her son was dead, she rose up and destroyed all the seed royal of the house of Judah.