"Now All the Vault of Heaven Resounds"

A couple weeks ago, I watched the Concordia University Wisconsin chapel service from 28 April, in which the hymn was "Now All the Vault of Heaven Resounds."  I noticed a small feature in the line "All the glory, never ending!" near the end of the fourth verse, sung to this musical phrase from the tune "Lasst uns erfreuen":

The phrase "All the glory" is sung to notes of all different pitches (Ab G F Eb), providing a sense of this entirety.