Rev. 19.11-16

Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war.  His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself.  He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God.  And the armies of heaven, arrayed in fine linen, white and pure, were following him on white horses.  From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty.  On his robe and on his thigh he has a name written, King of kings and Lord of lords.

Ps. 149.5-9

Let the godly exult in glory; let them sing for joy on their beds. Let the high praises of God be in their throats and two-edged swords in their hands, to execute vengeance on the nations and punishments on the peoples, to bind their kings with chains and their nobles with fetters of iron, to execute on them the judgment written! This is honor for all his godly ones. Praise the Lord!