A Commentary, Critical, Practical, and Explanatory on the Old and New Testaments, by Robert Jamieson, A.R. Fausset and David Brown  at sacred-texts.com
2 Chronicles 26:1
ch2 26:1UZZIAH SUCCEEDS AMAZIAH AND REIGNS WELL IN THE DAYS OF ZECHARIAH. (Ch2 26:1-8)
Then all the people of Judah took Uzziah--(See on Kg2 14:21; Kg2 15:1).
2 Chronicles 26:2
ch2 26:2He built Eloth--or, "He it was who built Eloth." The account of the fortifications of this port on the Red Sea, which Uzziah restored to the kingdom of Judah (Ch2 33:13), is placed before the chronological notices (Ch2 26:3), either on account of the importance attached to the conquest of Eloth, or from the desire of the historian to introduce Uzziah as the king, who was known as the conqueror of Eloth. Besides, it indicates that the conquest occurred in the early part of his reign, that it was important as a port, and that Hebrew merchants maintained the old trade between it and the countries of the East [BERTHEAU].
2 Chronicles 26:5
ch2 26:5he sought God in the days of Zechariah--a wise and pious counsellor, who was skilled in understanding the meaning and lessons of the ancient prophecies, and who wielded a salutary influence over Uzziah.
2 Chronicles 26:6
ch2 26:6he went forth and warred against the Philistines--He overcame them in many engagements--dismantled their towns, and erected fortified cities in various parts of the country, to keep them in subjection.
Jabneh--the same as Jabneel (Jos 15:11).
2 Chronicles 26:7
ch2 26:7Gur-baal--thought by some to be Gerar, and by others Gebal.
2 Chronicles 26:8
ch2 26:8the Ammonites gave gifts--The countries east of the Jordan became tributary to him, and by the rapid succession and extent of his victories, his kingdom was extended to the Egyptian frontier.
2 Chronicles 26:9
ch2 26:9HIS BUILDINGS. (Ch2 26:9-10)
Uzziah built towers in Jerusalem, &c.--whence resistance could be made, or missiles discharged against assailants. The sites of the principal of these towers were: at the corner gate (Ch2 25:23), the northwest corner of the city; at the valley gate on the west, where the Joppa gate now is; at the "turning"--a curve in the city wall on the eastern side of Zion. The town, at this point, commanded the horse gate which defended Zion and the temple hill on the southeast [BERTHEAU].
2 Chronicles 26:10
ch2 26:10Also he built towers in the desert--for the threefold purpose of defense, of observation, and of shelter to his cattle. He dug also a great many wells, for he loved and encouraged all branches of agriculture. Some of these "were in the desert," that is, in the district to the southeast of Jerusalem, on the west of the Dead Sea, an extensive grazing district "in the low country" lying between the mountains of Judah and the Mediterranean; "and in the plains," east of the Jordan, within the territory of Reuben (Deu 4:43; Jos 20:8).
in Carmel--This mountain, being within the boundary of Israel, did not belong to Uzziah; and as it is here placed in opposition to the vine-bearing mountains, it is probably used, not as a proper name, but to signify, as the word denotes, "fruitful fields" (Margin).
2 Chronicles 26:11
ch2 26:11HIS HOST, AND ENGINES OF WAR. (Ch2 26:11-15)
an host of fighting men, that went out to war by bands--He raised a strong body of militia, divided into companies or regiments of uniform size, which served in rotation. The enumeration was performed by two functionaries expert in the drawing up of military muster-rolls, under the superintendence of Hananiah, one of the high officers of the crown. The army consisted of 307,500 picked men, under the command of two thousand gallant officers, chiefs or heads of fathers' houses, so that each father's house formed a distinct band. They were fully equipped with every kind of military accoutrements, from brazen helmets, a habergeon or coat of mail, to a sling for stones.
2 Chronicles 26:15
ch2 26:15he made . . . engines, invented by cunning men . . . to shoot arrows and great stones--This is the first notice that occurs in history of the use of machines for throwing projectiles. The invention is apparently ascribed to the reign of Uzziah, and PLINY expressly says they originated in Syria.
he was marvellously helped till he was strong--He conducted himself as became the viceroy of the Divine King, and prospered.
2 Chronicles 26:16
ch2 26:16HE INVADES THE PRIEST'S OFFICE, AND IS SMITTEN WITH LEPROSY. (Ch2 26:16-21)
he transgressed against the Lord, &c.--(See on Kg2 15:5). This daring and wicked act is in both records traced to the intoxicating influence of overweening pride and vanity. But here the additional circumstances are stated, that his entrance was opposed, and strong remonstrances made (Ch1 6:10) by the high priest, who was accompanied by eighty inferior priests. Rage and threats were the only answers he deigned to return, but God took care to vindicate the sacredness of the priestly office. At the moment the king lifted the censer, He struck him with leprosy. The earthquake mentioned (Amo 1:1) is said to have been felt at the moment [JOSEPHUS].
2 Chronicles 26:21
ch2 26:21dwelt in a several house--in an infirmary [BERTHEAU].
2 Chronicles 26:23
ch2 26:23they buried him . . . in the field of the burial which belonged to the kings--He was interred not in, but near, the sepulcher of the kings, as the corpse of a leper would have polluted it.