Joyous Light of Heavenly Glory (ab; 2 pickup notes) 
D  D  D  A7   Bm G  A7 D
G  D  G  A    Bm G  A7 D

or Capo 2:
C  C  C  G7   Am F  G7 C
F  C  F  G7   Am F  G7 C