Joel 2:1-2

Blow the trumpet in Jerusalem. Shout a warning on my holy mountain. Let all the people who live in the land shake with fear. The Lord’s day of judging is coming. The Lord’s day of judging is near. It will be a dark, gloomy day. It will be a cloudy and black day. Like the light at sunrise, the great and powerful army will spread over the mountains. There has never been anything like it before. And there will never be anything like it again.