'Mighty' in the Bible

The great [judgment] day of the Lord is near,Near and coming very quickly.Listen! The [voice of the] day of the Lord!The warrior cries out bitterly [unable to fight or to flee].

“The Lord your God is in your midst,A Warrior who saves.He will rejoice over you with joy;He will be quiet in His love [making no mention of your past sins],He will rejoice over you with shouts of joy.