2 Chronicles 24:24-25

24Although the Arameans attacked with only a small army, the Lord helped them conquer the much larger army of Judah. The people of Judah had abandoned the Lord, the God of their ancestors, so judgment was carried out against Joash.

25The Arameans withdrew, leaving Joash severely wounded. But his own officials plotted to kill him for murdering the son of Jehoiada the priest. They assassinated him as he lay in bed. Then he was buried in the City of David, but not in the royal cemetery.