'Keep' in the Bible

Then Abner was very angry at the words of Ish-bosheth, and he said, “Am I a dog’s head [a despicable traitor] that belongs to Judah? Today I show loyalty and kindness to the house of Saul your father, to his brothers and his friends, by not having you handed over to David; and yet you charge me today with guilt concerning this woman.

He defeated Moab, and measured them with a length of rope, making them lie down on the ground; he measured two lengths to [choose those to] put to death, and one full length to [choose those to] be kept alive. And the [surviving] Moabites became servants to David, bringing tribute.

So the king left, and all his household with him. But the king left behind ten women who were concubines to take care of the house (palace).

Ahithophel said to Absalom, “Go in to your father’s concubines, whom he has left behind to take care of the house; then all Israel will hear that you have made yourself odious to your father. Then the hands of all who are with you will be strengthened [by your boldness and audacity].”

Now Absalom in his lifetime had taken and set up for himself a memorial pillar which is in the King’s Valley, for he said, “I have no son to keep my name in remembrance.” He named the memorial pillar after himself, and to this day it is called Absalom’s Monument.

Then David came to his house (palace) at Jerusalem, and the king took the ten women, his concubines whom he had left to take care of the house, and placed them under guard and provided for them, but did not go in to them. So they were confined, and lived as widows until the day of their death.