Isaiah 21:9-11 American Standard Version (ASV)
9 and, behold, here cometh a troop of men, horsemen in pairs. And he answered and said, Fallen, fallen is Babylon; and all the graven images of her gods are broken unto the ground.
10 O thou my threshing, and the grain of my floor! that which I have heard from Jehovah of hosts, the God of Israel, have I declared unto you.
11 The burden of Dumah.
One calleth unto me out of Seir, Watchman, what of the night? Watchman, what of the night?