'House of Israel' in the Bible

but go ye rather to the lost sheep of the house of Israel.

But He, answering, said, "I was not sent, except to the lost sheep of the house of Israel."

"Therefore, let all the house of Israel know assuredly, that God made Him both Lord and Christ??his Jesus Whom ye crucified."

But God turned, and gave them up to worship the host of heaven; as it has been written in a book of the prophets, 'Did ye offer to Me slain beasts and sacrifices, forty years in the wilderness, O house of Israel?

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;