This is another of the selections from Emma’s parish and a grand opus by Christopher Walker it is. It has three sets of lyrics, each of three verses, one for general use, one for Easter, and one for Christ the King, Corpus Christi or Ascension.
I have it Gather Australia 351.
The sheet music is available to purchase at OCP although they don’t make it easy to find it. They also have a snippet of the song to get the idea, but I can’t find the text on the web.
Here we have BIAB in fake orchestra mode being less than convincing and the chords are approximate: