2 Samuel 15:16; 2 Samuel 20:3

16 So the king went out, and all his household after him. And the king left jten concubines to keep the house.


And David came to his house at Jerusalem. And the king took gthe ten concubines whom he had left to care for the house and put them in a house under guard and provided for them, but did not go in to them. So they were shut up until the day of their death, living as if in widowhood.