Babylon is destroyed in the context of the Second Coming of Jesus Christ in Isaiah 13-14.  Another parallel passage of the destruction of Babylon also sees the return of Jesus Christ in the Book of Habakkuk.  A third parallel passage, Isaiah 17-18, has God rebuking the nations at the Battle of Armageddon when the robbers of Israel are not, or are wiped out.  And, even though Jeremiah 50-51 does not clearly have His return in it, it does talk about fleeing to Jerusalem out of Babylon and that those who escape the sword or Great Tribulation Period war should think about Jerusalem.  Of course, the destruction of Babylon is very closely associated with the return of the great king, Jesus Christ, as it falls before Him in the Book of Revelation.  This episode will help a person understand this very close connection between His return and the destruction of Babylon.