In book three of The Lord of the Rings at the end of the chapter called “The Ride of the Rohirrim” are these paragraphs:
Then suddenly Merry felt it at last, beyond doubt: a change. Wind was in his face! Light was glimmering. Far, far away, in the South the clouds could be dimly seen as remote grey shapes, rolling up, drifting: morning lay beyond them.
But at that same moment there was a flash, as if lightning had sprung from the earth beneath the City. For a searing second it stood dazzling far off in black and white, its topmost tower like a glittering needle; and then as the darkness closed again there came rolling over the fields a great boom.
At that sound the bent shape of the king [Theoden] sprang suddenly erect. Tall and proud he seemed again; and rising in his stirrups he cried in a loud voice, more clear than any there had ever heard a mortal man achieve before:
Arise, arise, Riders of Theoden! Fell deeds awake: fire and slaughter! spear shall be shaken, shield shall be splintered, a sword-day, a red day, ere the sun rises! Ride now, ride now! Ride to Gondor!
With that he seized a great horn from Guthlaf his banner-bearer, and he blew such a blast upon it that it burst asunder. And straightaway all the horns in the host were lifted up in music, and the blowing of the horns of Rohan in that hour was like a storm upon the plain and a thunder in the mountains.
Ride now, ride now! Ride to Gondor!
Suddenly the king cried to Snowmane and the horse sprang away. Behind him his banner blew in the wind, white horse upon a field of green, but he outpaced it. After him thundered the knights of his house, but he was ever before them. Eomer rode there, the white horsetail on his helm floating in his speed, and the front of the first eored roared like a breaker foaming to the shore, but Theoden could not be overtaken. Fey he seemed, or the battle-fury of his fathers ran like new fire in his veins, and he was borne up on Snowmane like a god of old, even as Orome the Great in the battle of the Valar when the world was young. His golden shield was uncovered, and lo! it shone like an image of the Sun, and the grass flamed into green about the white feet of his steed. For morning came, morning and a wind from the sea; and darkness was removed, and the hosts of Mordor wailed, and terror took them, and they fled, and died, and the hoofs of wrath rode over them. And then all the host of Rohan burst into song, and they sang as they slew, for the joy of battle was on them, and the sound of their singing that was fair and terrible came even to the City.
The next chapter is called “The Battle of the Pelennor Fields,” and it is one of the great and inspiring stories of battle to be found in literature. And these chapters reminded me of another passage, written long ago, yet to be fulfilled, and known to us as Revelation 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.