"Oh, What Their Joy"

On Worship Anew in September last year, one of the hymns was "Oh, What Their Joy," and the same recording was recently re-used.  Both times, I noticed a few small features in the hymn.

The second line of the second verse is "Blessings of peace shall forever abound," sung to this musical phrase from the tune "O quanta qualia":

"Forever" and "abound" are both sung with melismas (A A G A and C B C respectively), musically giving a sense of duration for "forever" and proliferation for "abound."

The last line of the first verse is "God shall be all, and in all ever blest," sung to this phrase:

Here, "all" is sung with a melisma (A G), for a sense of significance, and "blest" is sung with a melisma (G F) for a sense of the duration of that "ever."