This course covers the three woes mentioned in Revelation. The first woe under the fifth trumpet, demon creatures will be loosed out of the pit to torment men for five months (Rev. 9:1-12). The second woe under the sixth trumpet, two hundred million demon horsemen will come out of the abyss to slay one third of men at a certain hour (Rev. 9:13-21). The third woe, under the seventh trumpet, Satan and his wicked angels are cast out of heaven (second heaven) onto the earth (Rev. 11:14-19 12:1-9).