It will be noticed that, while the first two stanzas are based on the passage from Ecclesiasticus, the last stanza is the ancient doxology, Gloria Patri.
"The Story of Our Hymns"
Ernest Edwin Ryden
Ecclesiasticus, Ecclesiastes, the book of Job, the Lamentations of Jeremias manifest this sorrow in their every line, and the Middle Ages too in the "Imitation of Jesus Christ" cursed existence, and cried out loudly for death.
"En Route"
J.-K. (Joris-Karl) Huysmans
So also we meet with Jesus the Son of Sirach, who wrote the book Ecclesiasticus.
"The American Church Dictionary and Cyclopedia"
William James Miller