The Bm in the verse moves only if your playing along with the bass player.  
If the bass is riffing solo, don't play the chord

Verse:
      D      Bm           G      D  
Your mercy...celebrate...dance...mercy
      D      Bm      G       D 
Your glory...lift...shout...glory

Pre Chorus:
    Em          D/F#      G      A 
...overflow...forgiven...seen...hearts

Chorus:
   D    Em7        G      D  
...be...dancing...Lord...Lord
   D    Em7         G      D
...be...shouting...Lord...Lord

Great song, Praise God!
Worship first.  Music Second.  Mike