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 went not in unto them. So they were shut up unto 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, that were concubines, to keep the house.
2 Samuel 16:21-22
And Ahithophel said unto Absalom, Go in unto thy father's concubines, that he hath left to keep the house; and all Israel will hear that thou art abhorred of thy father: then will the hands of all that are with thee 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.