And thus I saw the horses in the vision, and them that sat on them, having breastplates of fire, and of jacinth, and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.
All Commentaries on Revelation 9:17 Go To Revelation 9
Bede
AD 735
horses: The malignant spirits are involved in the same punishments with those over whose hearts they preside. For we read, that "they who worship the beast are to be tormented with fire and brimstone," and that "the smoke of their torments goes up for ages of ages." Observe, that in the plague of locusts, he said not that he saw horsemen, but only horses." For here the magnitude of the persecutions make manifest the presence of a contrary power. Lastly, here there are heads of lions, but there there is the face of men, and the teeth alone of brutes. For heretics often make a shew of humanity, but the ministers of the last persecution exact by punishments even that which they recommended by words and signs.