Very simple chord progression:

Verse:
Em (022000) 
A (x02220) 
G ( 320003)
C (032010)

Chorus:
G (320001)
B (x24442) 
Em (022000) 
A (002220)

VERSE
Em                 A                             G
I want to change, to rearrange 
             C                
What is going on 
Em                 A                             G
I need to change, I need to play 
             C    
Like a five year old 

VERSE
Em                 A                G                               C
I can't detach from the past and all of the pain 
Em                 A                     G                               C
I need to learn, start from scratch begin again 

CHORUS
             G                    B
Throw away yesterday 
       Em                            A
Today is a brand new day 
             G                    B
Throw away yesterday 
       Em                            A
Today is a brand new day 

VERSE x2

CHORUS x1 

BRIDGE (same as chorus):
  G            B
Welcome to 
       Em                                           A
The church of what's happening now 
 G                     B
Head straight through 
             Em                            A
It costs nothing but change 

CHORUS x3