Revelation 9:2

And he opened the bottomless pit; he was a means of hell's breaking loose, by loosing Satan. And there arose a smoke out of the pit, as the smoke of a great furnace: I had rather interpret this generally of the great influence upon the world, that the devil, being loosed, had, in filling the world with ignorance, error, and wickedness, (for which this and the following age are infamous in all histories), and then particularly of the errors this time abounded with. And the sun and the air were darkened by reason of the smoke of the pit; this influence of the devil darkened the sun of the gospel, and the whole church of that age, with ignorance, error, and abominable superstition in the worship of God, attended with the lewdness and debauchery of men in their lives, which usually go together.