Coldplay Viva la Vida is amazing!!!!! song lyric interpretation please?!?

I used to rule the world Seas would rise when I gave the word Now in the morning I sweep alone Sweep the streets I used to own I used to roll the dice Feel the fear in my enemy's eyes Listen as the crowd would sing: "Now the old king is dead! Long live the king!" One minute I held... show more I used to rule the world
Seas would rise when I gave the word
Now in the morning I sweep alone
Sweep the streets I used to own

I used to roll the dice
Feel the fear in my enemy's eyes
Listen as the crowd would sing:
"Now the old king is dead! Long live the king!"

One minute I held the key
Next the walls were closed on me
And I discovered that my castles stand
Upon pillars of salt and pillars of sand

I hear Jerusalem bells a ringing
Roman Cavalry choirs are singing
Be my mirror my sword and shield
My missionaries in a foreign field
For some reason I can't explain
Once you go there was never, never an honest word
That was when I ruled the world

It was the wicked and wild wind
Blew down the doors to let me in
Shattered windows and the sound of drums
People couldn't believe what I'd become

Revolutionaries wait
For my head on a silver plate
Just a puppet on a lonely string
Oh who would ever want to be king?
*chorus*
is it biblical??
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