2 Samuel 20:3
And David came to his house at Jerusalem. And the king took the ten women his concubines, whom he had left to keep the house, and put them in ward, and provided them with sustenance, but did not go in to them. So they were shut up
2 Samuel 15:16
And the king went forth, and all his household after him. And the king left ten women, who were concubines, to keep the house.
2 Samuel 16:21-22
And Ahithophel said to Absalom, Go in to thy father's concubines that he has left to keep the house, and all Israel will hear that thou are abhorred by thy father. Then the hands of all who are with thee will be strong.
Genesis 40:3
And he put them in ward in the house of the captain of the guard, into the prison, the place where Joseph was bound.