I suppose this was a word of comfort to the people in terror of gathering powerful kingdoms that would overtake Jerusalem.
Like the African slaves in the confederate South, they dream of a role reversal.
When the destroyer is destroyed, and the betrayer is betrayed.
There follows a grand vision of the city as God’s City, it seems to be compared to a great ship with the wind, the breadth of God, at its sails, compared to the other nations which have run out of puff.
It’s about justice, that fly in the ointment which means God can’t just forgive everything and love everything, regardless.