"To Jordan Came the Christ, Our Lord"

Back in April last year, when I wrote a post about the Biblical sources of "To Jordan Came the Christ, Our Lord," I found some musical features to write about, which I hadn't noticed when I wrote about the hymn in March 2017.  "To Jordan Came the Christ, Our Lord" is paired with two different tunes in The Lutheran Service Book.  Like my previous post, this post deals with the tune "Christ, unser Herr."

About halfway through the second verse, there's the line "Pure water, freely flowing," sung to this musical phrase:

"Flowing" is sung with a melisma (C Bb A G), musically giving a sense of movement.

The first two lines of the fourth verse are "There stood the Son of God in love, / His grace to us extending," sung to these musical phrases:

"Extending" is sung with a melisma (F Eb D C), and since the word itself is stretched out, there's a musical sense of its meaning.