Alas for the day! for the day of Jehovah is at hand, and as destruction from the Almighty shall it come.

a day of darkness and gloom, a day of clouds and gross darkness, as the dawn spread upon the mountains; a great people and a strong; there hath not been ever the like, neither shall be any more after them, to the years of generations and generations.

The sun will be made dark and the moon turned to blood, before the great day of the Lord comes, a day to be feared.