2 Samuel 20:2-3

So all the men of Israel deserted David and followed Sheba son of Bicri. But the men of Judah stayed committed, sticking with their king all the way from the Jordan to Jerusalem. When David arrived home in Jerusalem, the king took the ten concubines he had left to watch the palace and placed them in seclusion, under guard. He provided for their needs but didn’t visit them. They were virtual prisoners until they died, widows as long as they lived.