Two wicked kings and one wicked queen rule Judah, before Joash becomes king.  Observe:

• Advisors – Ahaziah followed wicked counselors, and so Ahaziah ruled as a wicked king (22:3-4). Joash followed the advice of Jehoida the priest, and Joash did what was right in God’s eyes all the days of Jehoida (24:2).  But after Jehoida’s death, Joash and the people went after other gods; they would not listen to God’s prophets (24:17-19).  Who are your advisors?  Who do you listen to?  What direction are your counselors leading you?
• Revival – After years of apostasy, Jehoida made a covenant with Joash and the people that they should follow the Lord. The house, altar, and images of Baal were broken down.  Joash restored the house of the Lord, and sacrifices were again made to the Lord with rejoicing and singing.  In what ways do you need to return to the Lord?