Joash was seven years old when he became king, and he reigned in Jerusalem forty years. Joash did what was right in the eyes of the LORD all the years of Jehoiada the priest. At the king's command, a chest was made and placed outside, at the gate of the temple of the LORD. A proclamation was then issued in Judah and Jerusalem that they should bring to the LORD the tax that Moses the servant of God had required of Israel in the desert. All the officials and all the people brought their contributions gladly, dropping them into the chest until it was full. Whenever the chest was brought in by the Levites to the king's officials and they saw that there was a large amount of money, the royal secretary and the officer of the chief priest would come and empty the chest and carry it back to its place. They did this regularly and collected a great amount of money. The king and Jehoiada gave it to the men who carried out the work required for the temple of the LORD. They hired masons and carpenters to restore the LORD's temple, and also workers in iron and bronze to repair the temple. As long as Jehoiada lived, burnt offerings were presented continually in the temple of the LORD.
Now Jehoiada was old and full of years, and he died at the age of a hundred and thirty. He was buried with the kings in the City of David, because of the good he had done in Israel for God and his temple. That doesn't make sense. I'm glad he lived a long time, but he was 130 years old?

Genesis 6

Then the LORD said, "My Spirit will not contend with man forever, for he is mortal ; his days will be a hundred and twenty years." Not 130!

After the death of Jehoiada, the officials of Judah came and paid homage to the king, and he listened to them. They abandoned the temple of the LORD, the God of their fathers, and worshiped Asherah poles and idols. Because of their guilt, God's anger came upon Judah and Jerusalem. Although the LORD sent prophets to the people to bring them back to him, and though they testified against them, they would not listen. At the turn of the year, the army of Aram marched against Joash.When the Arameans withdrew, they left Joash severely wounded. His officials conspired against him for murdering the son of Jehoiada the priest, and they killed him in his bed. So he died and was buried in the City of David, but not in the tombs of the kings. Jehoiada was buried in the tombs of kings but not Joash? Wow. Reveals how bad Joash really was.