He built Tadmor in the wilderness, in addition to all the store cities that he had built in Hamath.
This we had Kg1 9:10-24, and therefore shall only observe here, I. Though Solomon was a man of great learning and knowledge, yet he spent his days, not in contemplation, but in action, not in his study, but in his country, in building cities and fortifying them, in a time of peace preparing for a time of war, which is as much a man's business...
Commenting on 2 Chronicles 8:1-11
Also he built Bethhoron the upper, and Bethhoron the nether,.... Only mention is made of the latter in Kg1 9:17, fenced cities, with walls, gates, and bars; fortified cities in the tribe of Ephraim.
And he built Tadmor in the wilderness, and all the store cities, which he built in Hamath. (c) Meaning of munitions and treasures for the war.