Threescore great cities with walls and brazen bars - These were fortified cities: their gates and bars covered with plates of brass. Such were the gates in Priam's palace: -
Ipse inter primos correpta dura bipenni
Limina perrumpit, Postes que a cardine vellit
Aeratos. Virg. Aen., lib. ii. ver. 479.
Fierce Pyrrhus in the front, with forceful sway,
Plied the huge axe, and hew'd the beams away;
The solid timbers from the portal tore,
And rent from every hinge the Brazen door.
Pitt.
It will be observed that five out of the twelve prefects are designated solely by their father‘s names, Ben-Hur, etc., while one (Ahimaaz, 1 Kings 4:15) has no such designation. Probably the document, which the author of the Book of Kings consulted, had contained originally the proper name and father‘s name of each prefect; but it was mutilated or illegible in places at the time when he consulted it. If it was in the shape of a list, a single mutilation at one corner might have removed four of the six wanting names.