Revelation 9:2

A smoke out of the pit; the smoke arising out of the bottomless pit and darkening the sun and the air may be taken as an apt emblem of the Mohammedan delusion. Out of this smoke come the swarms of locusts which well represent the hosts of the Saracens; for these fierce invaders had their origin in this satanic delusion, and were thoroughly animated by its spirit. The star fallen from heaven that opens the bottomless pit will then be Mohammed, the introducer of this pestilent superstition, with all who aided and abetted him in it. The description of the star as fallen from heaven, is thought by many to symbolize the fact that Mohammedism had its occasion in the deep corruption of Christianity that preceded it.