The chord progression is F///G///Am///C/// , all the way through , it just goes quieter 
on the verse bits .

INTRO RIFF = double tracked + possibly with a harmoniser , something like this
chords   F  /  /  / G  /  /  / / Am  /  /  /   C  /  /  /  /

       E -----------------------------------------------|
       B -----------------------------------------------|
       G 10-12-10-(b9)-------------|----------------------|
       D -----------12-10-(b9)-----|------10--------------|
       A -------------------12-10|10-12----12-10--------|
       E ------------------------|---------------12-12--|


One octave up double part ( might be an octave pedal )

       E 13-15-13-12----------------|----------------------|
       B ------------15-13-12-------|------13--------------|
       G ---------------------14-12-|12-14----14-12--------|
       D ---------------------------|---------------14-14--|
       A --------------------------------------------------|
       E --------------------------------------------------|



In the moment of my madness , in the presence of my shame,
I stood before saint peter , naked and un-named
Rain that fell with genius , wind that blew so cold
Across the street where angels stood ,In colours bright and bold

INTRO RIFF

He said ?son ,before I judge you, I have to make it clear?
Your heartfelt prayers for heaven on earth don?t come to much up here
Cos you still kill your brother, you watch your children die
Two thousand years aint changed your ways , still you wonder why

INTRO RIFF

The eastside and the west side, with great distance in between
Aparted by false values and a blindness seldom seen
Theres murder in the city streets , bloodshed in the fields
You take your lives so lightly , can you imagine how jesus feels

INTRO RIFF

Guitar solo ? over same verse chords

As I climbed the staircase , my suitcase in my hand
The stars around me shone like jewels ,on a vast and promised land
We never claim perfection , its hard enough to learn
Heavens doors are open wide , the fires of hell still burn

INTRO RIFF + guitar solo to fade