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1 In the seventh year of Jehu Jehoash began to reign; and forty years reigned he in Jerusalem. And his mother's name was Zibiah of Beer-sheba. 2 And Jehoash did that which was right in the sight of the LORD all his days wherein Jehoiada the priest instructed him. 3 But the high places were not taken away: the people still sacrificed and burnt incense in the high places. 4 And Jehoash said to the priests, All the money of the dedicated things that is brought into the house of the LORD, even the money of every one that passeth the account, the money that every man is set at, and all the money that cometh into any man's heart to bring into the house of the LORD, 5 Let the priests take it to them, every man of his acquaintance: and let them repair the breaches of the house, wheresoever any breach shall be found. 6 But it was so, that in the three and twentieth year of king Jehoash the priests had not repaired the breaches of the house. 7 Then king Jehoash called for Jehoiada the priest, and the other priests , and said unto them, Why repair ye not the breaches of the house? now therefore receive no more money of your acquaintance, but deliver it for the breaches of the house. 8 And the priests consented to receive no more money of the people, neither to repair the breaches of the house. 9 But Jehoiada the priest took a chest, and bored a hole in the lid of it, and set it beside the altar, on the right side as one cometh into the house of the LORD: and the priests that kept the door put therein all the money that was brought into the house of the LORD. 10 And it was so, when they saw that there was much money in the chest, that the king's scribe and the high priest came up, and they put up in bags, and told the money that was found in the house of the LORD. 11 And they gave the money, being told, into the hands of them that did the work, that had the oversight of the house of the LORD: and they laid it out to the carpenters and builders, that wrought upon the house of the LORD, 12 And to masons, and hewers of stone, and to buy timber and hewed stone to repair the breaches of the house of the LORD, and for all that was laid out for the house to repair it. 13 Howbeit there were not made for the house of the LORD bowls of silver, snuffers, basons, trumpets, any vessels of gold, or vessels of silver, of the money that was brought into the house of the LORD: 14 But they gave that to the workmen, and repaired therewith the house of the LORD. 15 Moreover they reckoned not with the men, into whose hand they delivered the money to be bestowed on workmen: for they dealt faithfully. 16 The trespass money and sin money was not brought into the house of the LORD: it was the priests'. 17 Then Hazael king of Syria went up, and fought against Gath, and took it: and Hazael set his face to go up to Jerusalem. 18 And Jehoash king of Judah took all the hallowed things that Jehoshaphat, and Jehoram, and Ahaziah, his fathers, kings of Judah, had dedicated, and his own hallowed things, and all the gold that was found in the treasures of the house of the LORD, and in the king's house, and sent it to Hazael king of Syria: and he went away from Jerusalem. 19 And the rest of the acts of Joash, and all that he did, are they not written in the book of the chronicles of the kings of Judah? 20 And his servants arose, and made a conspiracy, and slew Joash in the house of Millo, which goeth down to Silla. 21 For Jozachar the son of Shimeath, and Jehozabad the son of Shomer, his servants, smote him, and he died; and they buried him with his fathers in the city of David: and Amaziah his son reigned in his stead.
[AD 850] Ishodad of Merv on 2 Kings 12:4
“The money for the assessment.” [The Scripture] uses [this term] for the money which is voluntarily given by the people for the “assessment” of their own person and whose payment has survived from the time of Moses who, after the [Israelites] were counted in the census, prescribed that four zouzē should be deducted from each of them. This form of contribution was perpetuated up to the days of our Lord as a memory of the kindness of God toward them. But at the time of our Lord they only gave two zouzē, because they had become poor.

[AD 1781] Richard Challoner on 2 Kings 12:4
The price of a soul: That is, the ordinary oblation, which every soul was to offer by the law. Ex. 30.
[AD 1781] Richard Challoner on 2 Kings 12:4
Sanctified: That is, dedicated to God's service.-- Ibid.
[AD 373] Ephrem the Syrian on 2 Kings 12:6-8
“Therefore King Joash summoned the priest Jehoiada with the other priests and said to them, ‘Why are you not repairing the house?’ ” The reason why king Joash and the high priest Jehoiada called a meeting to discuss the repairing of the house of God is revealed in the second book of the Annals with these words: “Athaliah instructed the children of iniquity, and undermined the house of the Lord and drove all the priests who were in the house of the Lord to the worship of the idols.” And it is not surprising that Athaliah, a woman endowed with audacity and shrewdness, made that attempt in order to aspire to power and take hold of the kingdom. Therefore, when everything was under her control and the king Ahaziah himself obeyed her blindly, nothing was neglected by her in order to draw the Jews away from the divine worship and to drive them to the ancient religion of the Sidonians. For this reason, while the temple of the true God remained abandoned after the introduction of the foreign cult, it had begun to be in ruin in many spots and was in danger of collapsing because of that. So the king, in order to remedy this serious situation, together with the authority of the high priest, gathered a large sum of money freely offered by the people and entrusted with it some priests elected to accomplish that task. But later on, when he realized that they were not making the progress he had hoped for in the task they had received, he transferred the care of the temple to other men of certain integrity who could work on that assignment with the highest perseverance and dedication. From the allegorical point of view you can recognize here a type of the saints who, after receiving from God the gift of knowledge, set out to repair that same house shaken by vain cults and various crimes.

[AD 735] Bede on 2 Kings 12:15
"And no account was made with the men who received the money, etc." [2 Kings 12:15] This is said, about the restoration of the house of the Lord by the aforesaid king Jehoash: And no reckoning was made with the men who received the money to distribute it to the craftsmen, but they dealt with it in faith, showing their devotion, because they had so much fervor in religion that no one doubted but that they handled the Lord's money without suspicion of any fraud, and that they faithfully offered it, taken from the treasury, to the workmen for repairing the house, as each had need.

[AD 373] Ephrem the Syrian on 2 Kings 12:19-21
“His servants arose, devised a conspiracy and killed Joash in the house of Millo, on the way that goes down to Silla.” When he reached the age of 130 years, the priest Jehoiada died. Joash, being persuaded by the advice of some of his princes, abandoned the true religion which he had piously served when Jehoiada was alive, and restored the idolatry introduced by the women of Sidon, which he had gloriously banished with the help of the high priest himself. And while Zechariah, son of Jehoiada, attempted to prevent [that impiety] with all his might, and being inflamed with the divine spirit and standing between the temple and the altar, reproached the king and his princes, he was stoned to death in the hall itself of the house of God. And that was an act of extreme cruelty on the part of Joash, and every person’s mind was disturbed because he, being oblivious of the benefits received from Jehoiada, allowed that the son of that very holy man was treated with such brutality before him and even incited [the crowd to stone him]. And [Zechariah], calling God as the witness of his innocence and his avenger, said, “May the Lord see and avenge.” The holy man foresaw the calamities that would shortly befall the king and his kingdom. One year later the Syrians9 invaded Judah and plundered the land so that Joash, in order to save his life, was forced to deprive himself of the goods of the royal house and of the temple but was, nevertheless, shamefully ill treated by his enemies; and eventually he fell ill and lay in bed. While Joash was ill in his own bed, he was the victim of a plot of his servants, who stabbed him to death.

[AD 1781] Richard Challoner on 2 Kings 12:21
The city of David: He was buried in the same city with his fathers, but not in the sepulchres of the kings. 2 Par. 14.