1 Then all the people of Judah took Uzziah, who was sixteen years old, and made him king in the room of his father Amaziah. 2 He built Eloth, and restored it to Judah, after that the king slept with his fathers. 3 Sixteen years old was Uzziah when he began to reign, and he reigned fifty and two years in Jerusalem. His mother's name also was Jecoliah of Jerusalem. 4 And he did that which was right in the sight of the LORD, according to all that his father Amaziah did. 5 And he sought God in the days of Zechariah, who had understanding in the visions of God: and as long as he sought the LORD, God made him to prosper. 6 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 built cities about Ashdod, and among the Philistines. 7 And God helped him against the Philistines, and against the Arabians that dwelt in Gur-baal, and the Mehunims. 8 And the Ammonites gave gifts to Uzziah: and his name spread abroad even to the entering in of Egypt; for he strengthened himself exceedingly. 9 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. 10 Also he built towers in the desert, and digged many wells: for he had much cattle, both in the low country, and in the plains: husbandmen also, and vine dressers in the mountains, and in Carmel: for he loved husbandry. 11 Moreover Uzziah had an host of fighting men, that went out to war by bands, according to the number of their account by the hand of Jeiel the scribe and Maaseiah the ruler, under the hand of Hananiah, one of the king's captains. 12 The whole number of the chief of the fathers of the mighty men of valour were two thousand and six hundred. 13 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. 14 And Uzziah prepared for them throughout all the host shields, and spears, and helmets, and habergeons, and bows, and slings to cast stones. 15 And he made in Jerusalem engines, invented by cunning men, to be on the towers and upon the bulwarks, to shoot arrows and great stones withal. And his name spread far abroad; for he was marvellously helped, till he was strong. 16 But when he was strong, his heart was lifted up to his destruction: for he transgressed against the LORD his God, and went into the temple of the LORD to burn incense upon the altar of incense. 17 And Azariah the priest went in after him, and with him fourscore priests of the LORD, that were valiant men: 18 And they withstood Uzziah the king, and said unto him, It appertaineth not unto thee, Uzziah, to burn incense unto the LORD, but to the priests the sons of Aaron, that are consecrated to burn incense: go out of the sanctuary; for thou hast trespassed; neither shall it be for thine honour from the LORD God. 19 Then Uzziah was wroth, and had a censer in his hand to burn incense: and while he was wroth with the priests, the leprosy even rose up in his forehead before the priests in the house of the LORD, from beside the incense altar. 20 And Azariah the chief priest, and all the priests, looked upon him, and, behold, he was leprous in his forehead, and they thrust him out from thence; yea, himself hasted also to go out, because the LORD had smitten him. 21 And Uzziah the king was a leper unto the day of his death, and dwelt in a several house, being a leper; for he was cut off from the house of the LORD: and Jotham his son was over the king's house, judging the people of the land. 22 Now the rest of the acts of Uzziah, first and last, did Isaiah the prophet, the son of Amoz, write. 23 So Uzziah slept with his fathers, and they buried him with his fathers in the field of the burial which belonged to the kings; for they said, He is a leper: and Jotham his son reigned in his stead.
[AD 258] Cyprian on 2 Chronicles 26:16-23
When King Uzziah carried a censer and violently took on himself to sacrifice, against the law of God, and refused to submit or give place, despite the opposition of Azariah the priest, he was confounded by God’s indignation and defiled with the markings of leprosy on his forehead, branded by the Lord’s anger on that part of the body on which those who win the Lord’s favor are sealed.

[AD 339] Eusebius of Caesarea on 2 Chronicles 26:16-23
Uzziah is described as at first having been righteous, and then it is related that he was lifted up in mind and dared to offer sacrifice to God himself, and his face became leprous in consequence. But Josephus carefully studied the additional comments of the expounders as well, and a Hebrew of the Hebrews as he was, hear his description of the events of those times. He tells: “Though the priests urged Uzziah to go out of the temple and not to break the law of God, he angrily threatened them with death unless they held their peace. And meanwhile an earthquake shook the earth, and a bright light shone through a breach in the temple and struck the king’s face, so that at once it became leprous. And before the city at the place called Eroga, the western half of the Mount was split asunder and rolling four stadia stopped at the eastern mountain, so as to block up the royal approach and gardens.” This I take from the work of Josephus on Jewish antiquities. And I found in the beginning of the prophet Amos the statement that he began to prophecy “in the days of Uzziah, king of Judah, two years before the earthquake.” What earthquake he does not clearly say. But I think the same prophet further on suggests this earthquake when he says, “I saw the Lord standing on the altar. And he said, Strike the altar, and the doors shall be shaken, and strike the heads of all, and the remnant I will slay with the sword.”Here I understand a prediction of the earthquake, and of the destruction of the ancient solemnities of the Jewish race and of the worship practiced by them in Jerusalem, the ruin that should overtake them after the coming of our Savior, when, since they rejected the Christ of God, the true High Priest, leprosy infected their souls, as in the days of Uzziah, when the Lord himself standing on the altar gave leave to him that struck, saying, “Strike the altar.”

[AD 373] Ephrem the Syrian on 2 Chronicles 26:16-23
In the midst of paradise God had planted the Tree of Knowledge to separate off, above and below, sanctuary from Holy of Holies. Adam made bold to touch and was smitten like Uzziah: the king became leprous, Adam was tripped. Being struck like Uzziah, he hastened to leave: both kings fled and hid, in shame of their bodies.

[AD 373] Ephrem the Syrian on 2 Chronicles 26:16-23
Remember Uzziah, how he entered the sanctuary; by seeking to seize the priesthood he lost his kingdom. Adam, by wishing to enrich himself, incurred a double loss. Recognize in the sanctuary the Tree, in the censer the fruit and in the leprosy the nakedness. From these two treasures there proceeded harm in both cases.

[AD 380] Apostolic Constitutions on 2 Chronicles 26:16-23
As, therefore, it was not lawful for one of another tribe that was not a Levite to offer anything or to approach the altar without the priest, so also do you do nothing without the bishop; for if anyone does anything without the bishop, he does it to no purpose. For it will not be esteemed as of any avail to him.… For as Uzziah the king, who was not a priest and yet would exercise the functions of the priests, was smitten with leprosy for his transgression; so every lay person shall not be unpunished who despises God, and is so mad as to affront his priests and unjustly to snatch that honor to himself: not imitating Christ, “who glorified not himself to be made an high priest” but waited till he heard from his Father, “The Lord swore and will not repent, You are a priest forever, after the order of Melchizedek.” If, therefore, Christ did not glorify himself without the Father, how dare anyone thrust himself into the priesthood who has not received that dignity from his superior and do such things that it is lawful only for the priests to do?

[AD 380] Apostolic Constitutions on 2 Chronicles 26:16-23
Neither do we permit the laity to perform any of the offices belonging to the priesthood, as, for instance, neither the sacrifice, nor baptism, nor the laying on of hands nor the blessing, whether the smaller or the greater, for “no one takes this honor to himself, but he that is called of God.” For such sacred offices are conferred by the laying on of the hands of the bishop. But a person to whom such an office is not committed but seizes on it for himself, he shall undergo the punishment of Uzziah.

[AD 435] John Cassian on 2 Chronicles 26:16-23
Of Uzziah, the ancestor of this king of whom we have been speaking, himself also praised in all things by the witness of the Scripture, after great commendation for his virtue, after countless triumphs that he achieved by the merit of his devotion and faith, learn how he was cast down by the pride of vainglory. “And,” we are told, “the name of Uzziah went forth, for the Lord helped him and had strengthened him. But when he was made strong, his heart was lifted up to his destruction, and he neglected the Lord his God.” … You see how dangerous the successes of prosperity generally are, so that those who could not be injured by adversity are ruined, unless they are careful, by prosperity; and those who in the conflict of battle have escaped the danger of death fall before their own trophies and triumphs.

[AD 532] Pseudo-Dionysius the Areopagite on 2 Chronicles 26:23
This, then, is what must be said whenever someone acts out of place, even when he seems to be doing something right, for no one may get out of line in this way. Surely, there was nothing unseemly in the fact that Uzziah burned incense in honor of God.… And yet the Word of God bars anyone who has taken over a task that is not for him. It teaches that everyone must remain within the order of his ministry, that only the chief priest has the right to enter the Holy of Holies, and this only once a year and in the state of hierarchical purity which Law demands. The priests cover the holy things, and the Levites “do not touch the holy things, lest they die.” That is why the Lord was angered by the boldness of Uzziah.… To sum up, The perfect justice of God rejects those who break the law. - "Letter 8"