This is tuned down 1/2 step.  He uses some pretty messed up chords so I tabbed them 
all at the bottom of this.

Tuning Eb Ab Db Gb Bb eb

Intro:
eb-----------------------------------------------------
Bb-----------------------------------------------------
Gb------------------------------------1-2-1------------
Db-----1-1h2-22---1-1h2-22---1-1h2-22------2-----1h2---
Ab---2-----------2----------2----------------0h2-------
Eb--0-----------0----------0---------------------------

Verse1:
E
Lord you know how much
E/D#
I want to know so much
C#                    A         B
In the way of answers and explinations
E
I have cried and prayed
E/D#
But still I seem to stay
C#                    A       B
In the middle of lifes complications
C                            D
All this confusion leaves me feeling like im chasing down the wind
C                              B
But now its brought me back to you and I can see again

Chorus(es):
E       B
This is everything I want
C#      A
This is everything I need
E          B             B   C#    B   A
I want this to be my one consuming passion
E       B            C#
Everything my heart desires
A                     C#
Lord I want it all to be for you Jesus
C        D
Be my Magnificent Obsession

Then you play the intro riff when he sings Obsession.
The second verse is the same as the first and so is the second chorus.

Interlude:
eb--------------------------------------------------
Bb--------------------------------------------------
Gb--7/9----9---7/9-----9--7/9----9-9-11-12-12-11-9-7
Db--7/9----9---7/9-----9--7/9----9-9-11-12-12-11-9-7
Ab--5/7----7---5/7-----7--5/7----7-7-9--10-10-9--7-5
Eb------00---------00---------00--------------------
The last little part is
        CC            DD
You are everything to me

Then you play the chorus chords to the end

Thats all

Here are the chords
 E    E/D#  C#   A     B    C    D   A     B
-0-----0----0----0-----0----0----0---0-----0
-0-----0----0----0-----0----0----0---0-----0
-4-----4----6----6-----8----5----7---2-----4
-6-----6----6----7-----9----5----7---2-----4
-7-----6----4----7-----9----3----5---0-----2
-0-----0----0----5-----7----0----0---0-----0


If you have any questions or comments email me at [email protected]

Play In Christ