In the Old Testament, when He was predicting the future fall of some nation or empire, Yahweh did what we find Him doing here in Revelation.  He would predict the same fall over and over again using a lot of imaginative metaphors.  Then He’d throw in some mourning songs that were really meant to serve as mockery.  To understand this let’s use a modern day analogy.

Suppose there are two women named Amy and Heather.  Amy thinks Heather is her best friend until the day she finds out that Heather is having an affair with Amy’s husband.  Amy reacts to this whole situation very immaturely: she flips out and makes up her mind that she’s going to kill Heather.  She’s going to kill her in the cruelest way she can think of, because she really wants Heather to suffer terribly.  But before she actually kills Heather, Amy goes over to Heather’s house and tells her, “One day I’m going to kill you, Heather.  And when I do, it’s going to be horrible for you.”  You see, Amy is so consumed with hate that she no longer has any fear of being caught.  She is in such a rush to see Heather upset, that she flaunts her future plans to murder Heather, not even worrying about the possibility that Heather might try to get help.  Now let’s say that after Amy freaks Heather out with her murderous plans, Amy then launches into a long mocking speech about how other people will react to Heather’s death.  Amy says stuff like:

“On the day you die, when your mom finds out, she’s going to be like, ‘Oh no!  Not my baby girl!  Not my precious daughter!’  But it will be too bad for her, won’t it?  Because you’ll be dead and there’s nothing anyone will be able to do about it!  And when my adulterous husband finds out, he’ll be like, ‘Oh no, not Heather!  You mean I dumped my wife for nothing?  Gee, maybe I should have thought before cheating on the woman that I vowed to be faithful to!'” 

As Amy mockingly puts words in other people’s mouths, she’s talking like Yahweh often talks in His prophecies against other nations.