When I wrote about the Biblical sources for "O Morning Star, How Fair and Bright" earlier this week, I noticed a small connection between the hymn text and the tune (Philipp Nicolai's "Wie schön leuchtet"). The second line of the third verse is "At once there falls from God above," sung to this musical phrase:
The "falls from God above" part is sung to a descending phrase, as if to represent that "fall[ing]."