2 Samuel 20:3
And David entered into his own house, in Jerusalem, and the king took the ten women, the concubines whom he had left to keep the house, and put them in ward, and sustained them, but, unto them, went he not in, - so they were shut up until the day of their death, in lifelong widowhood.
2 Samuel 15:16
So the king went forth, with all his household attending him, - but the king left ten women who were concubines, to keep the house.
2 Samuel 16:21-22
And Ahithophel said unto Absolom, Go in unto thy father's concubines, whom he hath left to keep the house, - so shall all Israel hear that thou hast made thyself odious unto thy father, and the hands of all that are with thee, shall be strengthened.
Genesis 40:3
so he delivered them up into the ward of the house of the chief of the royal executioners, into the prison, - the place where Joseph was imprisoned.