The theme is “The House Cleaning.” God uses Jehu to clean up Baal worship in Israel, fulfilling prophecies by eliminating King Joram, Jezebel, and Ahab’s family. Jehu also destroys Baal’s temple and priests. Meanwhile, in Judah, Queen Athaliah rules illegitimately, but her reign ends when the rightful heir, Joash, becomes king, leading to revival. These events show God’s justice and desire for His people to turn back to Him.