"The Day Is Surely Drawing Near"

A couple months ago, I watched the Concordia University Wisconsin chapel service from 22 November.  The hymn was "The Day Is Surely Drawing Near," and I noticed two instances of the same sort of feature.

The hymn is sung to the tune "Es ist gewisslich."  Here's the second musical phrase:

In the second verse, the text here is "And all the earth be shaken."  The phrase "all the earth" is sung to notes of all different pitches (B C D), giving a sense of that breadth.

Here's the fifth musical phrase:

In the third verse, the text here is "And ev'ry heart be clearly seen."  Here, the phrase "ev'ry heart" is sung to notes of all different pitches (B A G), providing a similar effect as above.