“The appearance of them is as the appearance of horses; and as horsemen, so shall they run.”
King James Version (KJV)
2:2 A day of darkness - A time of exceeding great troubles and calamities. And this passage may well allude to the day of judgment, and the calamities which precede that day. As the morning - As the morning spreads itself over all the hemisphere and first upon the high mountains, so shall the approaching calamities overspread this people. A great people - This seems more directly to intend the Babylonians.
2:3 A fire - The Chaldeans, as a fire shall utterly consume all things. Behind them - What is left behind is as burnt with a flame. As Eden - Fruitful and pleasant.
2:6 Blackness - Such as is the colour of dead men, or the dark paleness of men frightened into swoons.