Riff 1: Played During Intro And The First 3 Choruses And Verses

G|------------------------------|
D|------------------------------|
A|7\---0---3-------0---3-------0|
E|-----------3---0-------3---0--\

Repeat Riff 1 Then At The 4th Chorus When The Guitar And Drums 
Are In Play This:

Riff 2:

G|-------9-----------------5--------------------14-------------------------12-----------|
D|------9----------------5--------------------14--------------------------12------------|
A|7-7-7---7-7-7-7\--3-3-3----3-3-3-3/--12-12-12----12-12-12-12\--10-10-10----10-10-10-10|
E|--------------------------------------------------------------------------------------|

Repeat Riif 2 Until Bono Sings, 'To The Lamb Of God...' Then Play 
This:

Riff 3:

G|---------------------------------------------------------------|
D|---------------------------------------------------------------|
A|0-0-0-0-0-0-3-3-----------------0-0-0-0-0-0-3-3----------------|
E|----------------3-3-3-3-3-3-0-0-----------------3-3-3-3-3-3-0-0|

Repeat Riff 3 Until Bono Sings, 'O Believe Him...' Then Play 
Riff 2 Until The Song Fades Out.

The Timing for The Song Is Simple You Just have to Listen For It :-)

That's It Enjoy