David puts his concubines away
David put the concubines he had left in Jerusalem in a house under guard and provided for them.
Key passages
2 Sa 20:3

David went up to his house in Jerusalem, then the king took the ten concubines whom he had left to look after the house, and he put them under confinement. However, he provided for them, but he did not sleep with them. So they were confined until the day of their death, like a lifetime of widowhood. …

See also