'Riders' in the Bible

When he sees riders—pairs of horsemen,riders on donkeys,riders on camels—he must pay close attention.”

Look, riders come—horsemen in pairs.”And he answered, saying,“Babylon has fallen, has fallen.All the images of her godshave been shattered on the ground.”

Now therefore give pledges, I pray thee, to my master the king of Assyria, and I will give thee two thousand horses, if thou be able on thy part to set riders upon them.