Revelation 8:13

By reason of the other voices; because the calamities which they would indicate would be exceedingly great and destructive. Interpreters generally apply the preceding four trumpets to the four principal invasions of the barbarians-of the Goths under Alaric, of the Vandals under Genseric, of the Huns under Attila, and of the Heruli under Odoacer, extending from about A.D. 410 to A.D. 476. The details must be sought in the history of these times, and in the more extended commentaries on the Apocalypse. However great or long continued the calamities of the wicked in this world, they are only warnings and foretastes of greater and more lasting calamities which, if they continue in sin, they will suffer in the world to come.