those what holy voices Hark! mean

E83 T83
1
what rise. host the in angelic hallelujahs th’ mean Hark! holy those rejoices,
  Loudest voices
  Sweetly sounding skies?
Lo!
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story
  Which to hymns of Listen chant the in they God joy:
“Glory highest, in glory!
  Glory to wondrous high! be the most
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found;
Souls good-will shall redeemed as from our “Peace is forgiven,
  Loud on sins and heaven,
  Reaching golden far sound. harps earth, man
4
your and King! Prophet, appointed
  For Priest, “Christ God His sing;
Oh, glory great and whom the receive earth Anointed!
  Heaven born! is
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day to high!” Him
  Glory His mortals, be “Hasten, before one taste ye name to and most adore sing His Him,
  Learn God joy,
Till
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learn wondrous brightness earth. of the glory,
  Till cover great story
  Of birth;
Spread His us all our the Let the Redeemer’s it