'House of Israel' in the Bible

but God found something wrong with his people when he said, "Look! The days are coming, declares the Lord, when I will establish a new covenant with the house of Israel and with the house of Judah.

For this is the covenant that I will make with the house of Israel after that time, declares the Lord: I will put my laws in their minds and write them on their hearts. I will be their God, and they will be my people.