'House of Israel' in the Bible

for, finding fault with them, He saith, "Behold, the days are coming, saith the Lord, when I will make a new covenant with the house of Israel, and the house of Judah;

Because this is the covenant which I will make with the house of Israel after those days, saith the Lord: Putting My laws into their mind, I will also write them upon their hearts, and I will be to them a God, and they shall be to Me a people;