'House of Judah' in the Bible

Nevertheless I will have mercy upon the house of Judah, and will save them even through the LORD their God. But I will not deliver them through any bow, sword, battle, horses, or horsemen."

Therefore will I be unto Ephraim as a moth, and to the house of Judah as a caterpillar.

I am unto Ephraim as a lion, and as a lion's whelp to the house of Judah. Even I, I will spoil them, and go my way. I will take them with me, and no man shall rescue them.