It may seem like the powers of Hell dominate this world, but even they are under God's control & used for His purposes.
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Revelation 9 (NIV)
1 The fifth angel sounded his trumpet,
and I saw a star that had fallen from the sky to the earth.
The star was given the key to the shaft of the Abyss.
2 When he opened the Abyss,
smoke rose from it like the smoke from a gigantic furnace.
The sun and sky were darkened by the smoke from the Abyss.
3 And out of the smoke locusts
came down on the earth
and were given power like that of scorpions of the earth.
4 They were told not to harm
the grass of the earth
or any plant or tree,
but only those people who did not have the seal of God on their foreheads.
5 They were not allowed
to kill them
but only to torture them for five months.
And the agony they suffered was like that of the sting of a scorpion when it strikes.