The end of Joel’s prophecy is the opposite of its beginning. In Joel 1:1–20, Judah’s future seemed uncertain. Plague and drought, signs of divine judgment, threatened Judah’s survival. Now Joel concludes with the divine promise that Judah and Jerusalem will last through all generations. God's people in every era find security in the hope that his kingdom will rule over heaven and earth (see also Isaiah 9:6–7; Daniel 2:44; 7:13–14).