'Day of the Lord' in the Bible

How awful that day will be! For the day of the Lord is near; it will come as destruction from the Divine Destroyer.

Blow the trumpet in Zion; sound the alarm signal on my holy mountain! Let all the inhabitants of the land shake with fear, for the day of the Lord is about to come. Indeed, it is near!

The voice of the Lord thunders as he leads his army. Indeed, his warriors are innumerable; Surely his command is carried out! Yes, the day of the Lord is awesome and very terrifying -- who can survive it?

The sunlight will be turned to darkness and the moon to the color of blood, before the day of the Lord comes -- that great and terrible day!

Crowds, great crowds are in the valley of decision, for the day of the Lord is near in the valley of decision!