'House of Judah' in the Bible

But I will have mercy on the house of Judah, and will save them by the LORD their God, and will not save them by bow, sword, battle, horses, or horsemen."

Therefore I am to Ephraim like a moth, and to the house of Judah like rottenness.

For I will be to Ephraim like a lion, and like a young lion to the house of Judah. I myself will tear in pieces and go away. I will carry off, and there will be no one to deliver.