Tall and proud [King Théoden] 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 Théoden!
Fell deeds awake; fire and slaughter!
Spear shall be shaken, shield be splintered,
a sword-day, a red day, ere the sun rises!
Ride now, ride now! Ride to Gondor!
[…] And straightway 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.