'Household' in the Bible
All of Israel since the king wasn't going to listen to them the people responded to the king, "What's the point in following David? We have no inheritance in the descendants of Jesse. Let's go home, Israel! David, take care of your own household!" So all of Israel left for home.
Take notice, please, that Amariah the Chief Priest is presiding over all cases that pertain to the LORD, Ishmael's son Zebadiah is presiding as ruler of the household of Judah with respect to all cases that pertain to the national government, and the descendants of Levi will preside over your other civil cases. Serve courageously, and the LORD will be with the upright."
Jehu also searched for Ahaziah, had him apprehended while Ahaziah was hiding out in Samaria, and had Ahaziah brought to him. Jehu had Ahaziah executed and buried. It was said of Jehu, "He is the son of Jehoshaphat, who sought the LORD with all of his heart." As a result, there was no one left in the household of Ahaziah strong enough to reign in the kingdom.