This song has three guitars. Guitar One is a standard-tuned electric. Gutar Two is an acoustic 
in EABEBe tuning. (please tune down for that!) Guitar Three is... ?

First, Guitar One goes through its riff once. On the second time, Guitar two comes in strumming 
each chord once. On the third time, Dan starts singing, and Guitar two does a more 
rhythm-guitarish thing. Then, they pretty much do that through the whole song.

Guitar One riff:

e-------------------------------------------------------------+
B-------------------------------------------------------------|
G-------------------------------------------------------------|
D-------------------------------------------------------------|
A-11-11-9-9-9-11-9-11-9-11-9-----11-11-9-9-9-11-9-11-9-11-9---|
E-9—-9—-9-9-9-9--9-9--9-9--9-----0--0--0-0-0-0--0-0--0-0--0---+

  C#m                            E5                   <- Guitar Two

e-------------------------------------------------------------+
B-------------------------------------------------------------|
G-------------------------------------------------------------|
D-11-11-9-9-9-11-9-11-9-11-9-----11-11-9-9-9-11-9-11-9-11-9---|
A-9—-9—-9-9-9-9--9-9--9-9--9-----0--0--0-0-0-0--0-0--0-0--0---|
E-------------------------------------------------------------+

  F#m                            A2                   <- Guitar two

Guitar Two chords:

e—-4---0---0--0---+
B--0---0---2--0---|  
E--4---0---0--5---|
B--0---0---2--5---|
A—-4---2---0--0---|
E--0---0---2--0---+
   C#m E5 F#m A2 

Lyrics:
We have this treasure
In Earthen Vessels
To show that this power
Is from God and not from us.