David and Solomon's invisible kingdom

For some, archaeology proves that David and Solomon ruled over a powerful kingdom made up of walled,well-fortified cities and towns, places like Megiddo, Hazor, Gezer, and more recently, Khirbet Qeiyafa. For others, the same archaeology shows that their kingdom wasn’t much of a kingdom at all—and certainly nothing like the great power described in the Bible. We contend, however, that archaeology, at least as traditionally practiced, will likely never be able to identify David and Solomon’s kingdom. Why? Because it was largely invisible.