Isaiah 21:6-9

ASV_Strongs(i)
  6 H136 For thus hath the Lord H559 said H3212 unto me, Go, H5975 set H6822 a watchman: H5046 let him declare H7200 what he seeth:
  7 H7200 and when he seeth H7393 a troop, H6571 horsemen H6776 in pairs, H7393 a troop H2543 of asses, H7393 a troop H1581 of camels, H7181 he shall hearken H7182 diligently H7227 with much H7182 heed.
  8 H7121 And he cried H738 as a lion: H136 O Lord, H5975 I stand H8548 continually H4707 upon the watch-tower H3119 in the day-time, H5324 and am set H4931 in my ward H3915 whole nights;
  9 H935 and, behold, here cometh H7393 a troop H376 of men, H6571 horsemen H6776 in pairs. H6030 And he answered H559 and said, H5307 Fallen, H5307 fallen H894 is Babylon; H6456 and all the graven images H430 of her gods H7665 are broken H776 unto the ground.