Okay so I would like to state something before you dive right into this wonderful song.
These are chords I personally play and prefer, however, this tab most-definitely is an optional way to play 
the song. If you do not like the chords listed below or are looking for the closest thing to the recording,
I would suggest you seek out one of the versions by Jesus Culture on this site. 
Just giving you options for the song. :)
[Verse]
                Fm7  Ab2                     Dbmaj9   Eb2
You provide the fire,   and I'll provide the sacrifice
                Fm7    Ab2                Dbmaj9    Eb2
You provide the Spirit,   and I will open up inside
*Do not play the last Eb2 going into the chorus
[Chorus]
Dbmaj9        Eb2              Fm7
      Fill me up, God, fill me up, God, 
        Eb2/G    Ab2      Dbmaj9
Fill me up, God, fill me up