'House of Israel' in the Bible

But go to the wandering sheep of the house of Israel,

But he made answer and said, I was sent only to the wandering sheep of the house of Israel.

But God was turned from them and let them give worship to the stars of heaven, as it says in the book of the prophets, Did you make offerings to me of sheep and oxen for forty years in the waste land, O house of Israel?

For, protesting against them, he says, See, the days are coming when I will make a new agreement with the house of Israel, and with the house of Judah;