'House of Israel' in the Bible

And when Rehoboam was come to Jerusalem, he assembled all the house of Judah, with the tribe of Benjamin, a hundred and fourscore thousand chosen men, who were warriors, to fight against the house of Israel, to bring the kingdom again to Rehoboam the son of Solomon.

And his servants said unto him, Behold now, we have heard that the kings of the house of Israel are merciful kings: let us, I pray you, put sackcloth on our loins, and ropes upon our heads, and go out to the king of Israel: perhaps he will save your life.