'House of Israel' in the Bible

A long time passed it was twenty years from the time the Ark came to reside in Kiriath-jearim, and all the house of Israel mourned because of the LORD.

Then Samuel told the whole house of Israel, "If you're returning to the LORD with all your heart, then remove the foreign gods and the Ashtaroth from among you, direct your hearts back to the LORD, and serve him only. Then he will deliver you from the control of the Philistines."