"Your Heart, O God, Is Grieved"

A couple years ago, I noticed a small feature in "Your Heart, O God, Is Grieved," sung to the tune "Známe to, pane bože náš."  Here are the first two musical phrases of the congregation's part:

In the first verse, the text here is "Your heart, O God, is grieved, we know, / By ev'ry evil, ev'ry woe."  The second "ev'ry" is sung with a melisma (B A G#), musically giving a sense of amount.