I came across reference to the above recently in the world history of a Dutch writer and I was aghast as archaeological research has been going on in present day Israel for over a hundred years and no evidence for this famed polity has emerged, except for occasional finds in the Shephelah. Assessments of Jerusalem continue to insist it was little more than a village and many of the urban sites claimed in Judaic writings as belonging to this supposed early Hebrew empire seem culturally Philistine or Canaanite.
I have elsewhere theorised that the stories were fabricated after the defeat of Judea, never more than a secondary power in the region, by Assyria and Babylon, the crushing and annihilation of the Kingdom of Israel based in Samaria, in order to assuage such overwhelming defeats.