Stanzas 1-3 explain in hymn form what the Apostles' Creed confesses: he was "conceived by the power of the Holy Spirit and born of the virgin Mary" (see also Luke 1:26-45). Stanza 4 alludes to Philippians 2:6-11, which speaks of Christ's humiliation and exaltation. Stanza 5 is a prayer for faithfulness, and stanza 6 is a plea that Christ continue to intercede for his people. Stanza 7, a doxology, points to Christ's second coming and the coming of his eternal "lasting kingdom."
Psalter Hymnal Handbook
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.