Luke 4:17-19: "And the scroll of the prophet Isaiah was given to him [Jesus]. He unrolled the scroll and found that place where it was written, 'The Spirit of Lord is upon me, because he has anointed me to proclaim good news to the poor. He has sent me to proclaim liberty to the captives and recovering of sight to the blind, to set at liberty those who are oppressed, to proclaim the year of the Lord's favor.'"
Galatians 4:4: "But when the fullness of time had come, God sent forth his Son, born of woman, born under the law."
Revelation 22:20: "He who testifies to these things says, 'Surely I am coming soon.' Amen. Come, Lord Jesus!"
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The Luke 4 text quotes Isaiah 61:1-2: "The Spirit of the Lord GOD is upon me, because the LORD has anointed me to bring good news to the poor; he has sent me to bind up the brokenhearted, to proclaim liberty to the captives, and the opening of the prison to those who are bound; to proclaim the year of the LORD's favor, and the day of vengeance of our God; to comfort all who mourn."
That Isaiah 61/Luke 4 text is alluded to in the first and fourth verses. "He has sent me to proclaim liberty to the captives... [and] to set at liberty those who are oppressed" (from Luke 4) is rendered as "Hope and freedom gave us" in verse 1 and "From our sins release us" in verse 4.
To some degree, that Luke 4 text shows up in the second verse too. While "He gently leads us" and "He feeds us / Precious food from heaven" aren't mentioned specifically in that Luke text, they could be considered as aspects of "the Lord's favor."
The lines "Came in likeness lowly, / Son of God most holy" in the first verse seem to come from the Galatians 4 text. Certainly, there's a similarity between "Son of God" and "God sent forth his Son," and "Came in likeness lowly" seems to be just a more poetic way of saying "born under the law."
All of verse three (which starts with "Soon will come that hour") and specifically the first line of verse four ("Come, then, O Lord Jesus") springs from the Revelation 22 text.
The lines "Came in likeness lowly, / Son of God most holy" in the first verse seem to come from the Galatians 4 text. Certainly, there's a similarity between "Son of God" and "God sent forth his Son," and "Came in likeness lowly" seems to be just a more poetic way of saying "born under the law."
All of verse three (which starts with "Soon will come that hour") and specifically the first line of verse four ("Come, then, O Lord Jesus") springs from the Revelation 22 text.
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In the lines "With Himself He feeds us / Precious food from heaven, / Pledge of peace here given, / Manna that will nourish / Souls that they may flourish," there's a connection between the Lord's Supper (Matthew 26:26-28, Mark 14:22-24, Luke 22:19-20, and 1 Corinthians 11:23-25) and Old Testament manna (Exodus 16). While these lines aren't quotes or paraphrases of those Biblical passages, there is some specificity in those references.