Judges 1:21

And the children of Benjamin did not drive out the Jebusites that inhabited Jerusalem, who returned to the city as soon as the armies of Judah and Simeon marched southward; but the Jebusites dwell with the children of Benjamin in Jerusalem unto this day. This notice is here inserted partly to show that the conquered city did not remain in the hands of Israel, partly to indicate that Judah had no intention of permanently occupying a city allotted to Benjamin.