Stanza 1 begins with the words "Morning Star" from Revelation 22: 16 and proceeds to give Old Testament names for the Messiah–"O Righteous Branch," "O Jesse's Rod." Stanza 2 relates how Christ left his glory to become human for our salvation. Both stanzas 1 and 2 end with a prayer of petition. Stanza 3, with a prayer of praise, rejoices in Christ's incarnation and exhorts the Incarnate God to "ride on, great Conqueror, till all know your salvation."
In stanza 1, this song gives Jesus multiple names: “Righteous Branch, Jesse’s Rod, Song of Man and Son of God,” and “great Emmanuel.” Belgic Confession, Article 18 explains the process by which he took on the flesh and blood of children and then concludes by saying, “In this way Christ is truly our Emmanuel—that is: ‘God with Us.’” Stanza 2 refers to the way in which Christ “cast a pitying eye on his helpless creature.” Our World Belongs to God, paragraph 5 uses a much stronger reference in professing that God sent Jesus into the world because of his “fierce love.”