Joash is seven years old when he begins to reign and rules forty years in Jerusalem. He does right in the sight of the Lord all the days of Jehoiada the priest. Later he resolves to restore the house of the Lord, which the sons of Athaliah had plundered for the Baals. He orders the priests and Levites to collect money, but they delay, and the king asks Jehoiada why they do not require Moses' tax. So he orders a chest at the temple gate, and the people bring their offering with joy until it is full. With that money they pay masons, carpenters and craftsmen, and the house is restored and made strong. While Jehoiada lives, burnt offerings are offered continually.
Jehoiada dies at a hundred and thirty and is buried among the kings, because he had done good in Israel and toward God and his house. Then the officials of Judah bow before Joash, he listens to them, and they abandon the house of the Lord to serve the Asherah poles and the idols. The Lord sends prophets, but they do not listen. The Spirit of God clothes Zechariah, Jehoiada's son, who warns them that because they forsook the Lord, he has forsaken them. At the king's command they stone him in the temple court. Joash does not remember Jehoiada's kindness, and as Zechariah dies he asks that the Lord see and require it.
At the turn of the year a small Syrian army enters Judah and kills the leaders of the people, though the Lord delivers a much larger army into its hand. Joash is left severely wounded, and his servants conspire against him for the blood of Jehoiada's son and kill him on his bed. They bury him in the city of David, but not in the tombs of the kings. His son Amaziah reigns in his place.