Excepting the final "Alleluia"s, the first verse ends with the line "It is as though the whole creation cried," sung to this phrase:
"Creation" is sung with a melisma (C B A G), musically giving a sense of the entirety of that "whole."
There's a similar feature in the third verse. It begins, "So has the Church..." and the sense is completed in the last line, "Borne witness to the truth in ev'ry tongue." This last line is sung to the same phrase as above. Here, "tongue" is sung with a melisma (A B), giving a sense of the breadth of "ev'ry."