'House of Israel' in the Bible

For finding fault with them he saith, Behold the days come, saith the Lord, when I will finish a new covenant with the house of Israel and with the house of Judah:

For this is the covenant which I will make with the house of Israel after those days, saith the Lord: I will put my laws in their minds, and write them on their hearts, and I will be to them a God, and they shall be to me a people.