The hymn is sung to the tune "Seward." Here's the fourth musical phrase:
In the fourth verse, the text here is "All creation shall adore Him!" "Creation" is sung with a melisma (A G F# D), giving a sense of the entirety of "all."
In looking at the hymn again in order to write this post, I also noticed that the phrase "All creation" is sung to notes of all different pitches (spanning a sixth: B | A G F# D), and this also provides a sense of breadth.