Joel 2:1-2

11Blow a trumpet in Zion, And sound an alarm on My holy mountain! Let all the inhabitants of the land tremble, For the 2day of the Lord is coming; Indeed, it is near,2A day of 3darkness and gloom, A day of clouds and thick darkness. As dawn is spread over the mountains, So there is a 4great and mighty people; There has 5never been anything like it, Nor will there be again after it To the years of many generations.