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 fed them but did not go in to them. And they were shut up till the day of their death, living in widowhood.
2 Samuel 15:16
And the king went forth, and all his household after him. And the king left ten women, concubines, to keep the house.
2 Samuel 16:21-22
And Ahithophel said to Absalom, Go in to your father's concubines, that he left to keep the house. And all Israel shall hear that you are abhorred by your father. And the hands of all who are with you will be strong.
Genesis 40:3
And he put them under guard in the house of the chief of the executioners, into the prison, the place where Joseph was bound.