Reflected in this song (stanza 2) is the truth that the Messiah came not in splendor, but as a child. See Isaiah 53:1-3.
Stanza 3 reminds us of the promise in Philippians 2:7-8 that every knee shall bow and call him Lord.
What is notable about this song is that it concludes with a Trinitarian doxology, thus pointing to the truth that the coming of Christ was clearly a redeeming action involving all three members of the Trinity. Heidelberg Catechism captures the role of each member of the Trinity in Lord’s Day 12, Question and Answer 31 when it professes that Christ is called anointed, because he has been “ordained by God the Father and has been anointed with the Holy Spirit” to be our prophet, priest, and king.