The title line is, of course, "Praise the One who breaks the darkness," sung to this phrase:
Although the sense is more metaphorical, that "darkness" is sung with a melisma (G F D) gives a sense of that "break[ing]."
Near the end of the first verse, there's the description "Calming storms, and feeding thousands," sung to this phrase:
Here, "thousands" is sung with a melisma (also G F D), giving a sense of amount.