Charles Ellicott Commentary 2 Chronicles 26:6-15

"And he went forth and warred against the Philistines, and brake down the wall of Gath, and the wall of Jabneh, and the wall of Ashdod; and he built cities in [the country of] Ashdod, and among the Philistines. And God helped him against the Philistines, and against the Arabians that dwelt in Gur-baal, and the Meunim. And the Ammonites gave tribute to Uzziah: and his name spread abroad even to the entrance of Egypt; for he waxed exceeding strong. Moreover Uzziah built towers in Jerusalem at the corner gate, and at the valley gate, and at the turning [of the wall], and fortified them. And he built towers in the wilderness, and hewed out many cisterns, for he had much cattle; in the lowland also, and in the plain: [and he had] husbandmen and vinedressers in the mountains and in the fruitful fields; for he loved husbandry. Moreover Uzziah had an army of fighting men, that went out to war by bands, according to the number of their reckoning made by Jeiel the scribe and Maaseiah the officer, under the hand of Hananiah, one of the king`s captains. The whole number of the heads of fathers` [houses], even the mighty men of valor, was two thousand and six hundred. And under their hand was an army, three hundred thousand and seven thousand and five hundred, that made war with mighty power, to help the king against the enemy. And Uzziah prepared for them, even for all the host, shields, and spears, and helmets, and coats of mail, and bows, and stones for slinging. And he made in Jerusalem engines, invented by skilful men, to be on the towers and upon the battlements, wherewith to shoot arrows and great stones. And his name spread far abroad; for he was marvellously helped, till he was strong." — 2 Chronicles 26:6-15 (ASV)

UZZIAH’S CAMPAIGNS, PUBLIC WORKS, AND MILITARY STRENGTH
(2 Chronicles 26:6–15).

This section is peculiar to the Chronicles. Although the book of Kings passes over the facts recorded here, they are essential to forming a correct understanding of the strength and importance of the southern kingdom during the age of Uzziah and Jotham; and they are fully corroborated, not only by comparison with the data of Isaiah (Isaiah 2-4) upon the same subject, but also by the independent testimony of the cuneiform inscriptions of the period. (See Note on 2 Kings 14:28.)

Thus we find that the warlike Assyrian Tiglath-pileser II. chastised Hamath for its alliance with Judah during this reign, but abstained from molesting Uzziah himself—“a telling proof,” as Schrader says, “ for the accuracy of the Biblical account of Uzziah’s well-founded power.” The name of Uzziah is conspicuously absent from the list of western princes who, in B.C. 738, sent tribute to Tiglath: Hystaspes (Kushtashpi) , king of Commagene (Kummuhâ’a) , Rezin, king of the country of the Damascenes, Menahem of the city of the Samaritans, Hiram of the city of the Tyrians, Sibitti-bi’li of the city of the Giblites or Byblos, Urikki of Kui, Pisiris of Carchemish, Eniel of Hamath, Panammu of Sam’al, and nine other sovereigns, including those of Tabal and Arabia.

The list thus comprises Hittites and Arameans, princes of Western Asia, Phoenicia, and Arabia. The omission of Uzziah argues that the king of Judah felt himself strong enough to sustain the shock of collision with Assyria in case of need. He must have counted on the support of the surrounding states (also not mentioned in the above list), namely, Ashdod, Ascalon, Gaza, Edom, Ammon, Moab, etc. (Schrader, Keilinschr., p. 252 and following).