Revelation 19:11, 14-15

Then I saw heaven opened, and suddenly a white horse appeared. The name of the one riding it was Faithful and True, and with pure righteousness he judges and rides to battle.

Following him on white horses were the armies of heaven, wearing white fine linen, pure and bright. A sharp sword came from his mouth with which to conquer the nations, and he will shepherd them with an iron scepter. He will trample out the wine in the winepress of the wrath of God.