"Hark, the Voice of Jesus Calling"

One of the hymns on Worship Anew this week was "Hark, the Voice of Jesus Calling," and I noticed a small feature in it.  It's sung to the tune "Galilean."  Here are the fifth and sixth musical phrases:

In the second verse, the text here is "Even as the sun is setting, / Some are sent into the fields."  The words "is setting" are sung to a descending group of notes (C B A), giving a sense of their meaning.