(Exodus 15:1) "A horse and its rider He has cast into the sea": Now was there only one horse and one chariot? Is it not written (Ibid. 14:7) "And he took six hundred choice chariots"? — When Israel does the will of the L–rd, its foes oppose it, as it were, with one horse and its rider. Similarly, (Devarim 20:1) "When you go out to war against your enemy and you see horse and chariot." Now was there only one horse and one chariot? — When Israel does the will of the L–rd, etc."