Lyrics *and* mp3 here...
http://www.ibiblio.org/jimmy/folkden-wp/?p=6987

Note that the song is titled "Twelve Gates to the City".

I also quite enjoy a Christmas version adapted and arranged by the New Christy Minstrels. Great stuff! Here's the chorus and one verse (all I can remember off the top of my head).

Oh! What a beautiful city
Oh! What a beautiful city
Oh! Oh! Oh! What a beautiful city
Oh! My Lord is born in Bethlehem.

Wise men from the East
Shepherds in the field
Angels sang from the heavens on high
The King of Kings is born in Bethlehem!

- - - - -