Jamieson, Fausset and Brown on Judges 9:51-53

51-53. all the men and women, ... gat them up to the top of the tower--The Canaanite forts were generally mountain fastnesses or keeps, and they often had a strong tower which served as a last refuge. The Assyrian bas-reliefs afford counterparts of the scene here described so vivid and exact, that we might almost suppose them to be representations of the same historic events. The besieged city--the strong tower within--the men and women crowding its battlements--the fire applied to the doors, and even the huge fragments of stone dropping from the hands of one of the garrison on the heads of the assailants, are all well represented to the life--just as they are here described in the narrative of inspired truth [Goss].