To their tents. It would seem that, during the whole of these "many days," the conquered cities had remained tenantless, waiting for the return of the warriors from their long expedition. "Those that were first in the assignment of the land were last in the enjoyment of it; so 'the last shall be first and the first last,' that there may be something of equality" (Matthew Henry).
The first part of the quotation is due to Bishop Hall, who also says, "If heaven be never so sweet to us, yet may wee not runne from this earthen warfare till our great Captaine shall please to discharge us."