Revelation 18:2

And he cried with a strong voice, saying: Fallen, fallen is Babylon the great, and is become a habitation of demons, and a hold of every unclean spirit, and a cage of every unclean and hateful bird;

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Summary

As a cage is full of birds, so are their houses full of deceit: therefore they are become great, and waxen rich.

Bible References

Cage

Revelation 18:2
And he cried with a strong voice, saying: Fallen, fallen is Babylon the great, and is become a habitation of demons, and a hold of every unclean spirit, and a cage of every unclean and hateful bird;