'House of Israel' in the Bible

For the transgression of Jacob is all this, and for the sins of the house of Israel. What is the transgression of Jacob? is it not Samaria? and what are the high places of Judah? are they not Jerusalem?

And I said, Hear, I pray you, O heads of Jacob, and ye princes of the house of Israel; Is it not for you to know judgment?

As for me, I am full of strength, and of the spirit of the LORD; full of judgment and boldness, to show the house of Jacob their wickedness, and the house of Israel their sin.

Hear this, I pray you, ye heads of the house of Jacob, and princes of the house of Israel, that abhor judgment, and pervert all equity.