Psalm 98:1-2: "1 Oh sing to the LORD a new song, for he has done marvelous things! His right hand and his holy arm have worked salvation for him. 2 The LORD has made known his salvation; he has revealed his righteousness in the sight of the nations."
Isaiah 52:9-10: "9 Break forth together into singing, you waste places of Jerusalem, for the LORD has comforted his people; he has redeemed Jerusalem. 10 The LORD has bared his holy arm before the eyes of all the nations, and all the ends of the earth shall see the salvation of our God."
Galatians 4:4: "But when the fullness of time had come, God sent forth his Son, born of woman, born under the law"
John 19:30: "When Jesus had received the sour wine, he said, 'It is finished,' and he bowed his head and gave up his spirit."
+++
The text is public domain:
Sing, my tongue, the glorious battle;
Sing the ending of the fray.
Now above the cross, the trophy,
Sound the loud triumphant lay;
Tell how Christ, the world's redeemer,
As a victim won the day.
Tell how, when at length the fullness
Of the appointed time was come,
He, the Word, was born of woman,
Left for us His Father's home,
Blazed the path of true obedience,
Shone as light amidst the gloom.
Thus, with thirty years accomplished,
He went forth from Nazareth,
Destined, dedicated, willing,
Did His work, and met His death;
Like a lamb He humbly yielded
On the cross His dying breath.
Faithful cross, true sign of triumph,
Be for all the noblest tree;
None in foliage, none in blossom,
None in fruit thine equal be;
Symbol of the world's redemption,
For the weight that hung on thee!
Unto God be praise and glory;
To the Father and the Son,
To the eternal Spirit honor
Now and evermore be done;
Praise and glory in the highest
While the timeless ages run.
+++
The first two lines ("Sing, my tongue, the glorious battle; / Sing the ending of the fray.") seem to combine the singing mentioned in Psalm 98:1 and Isaiah 52:9. The redemption and salvation mentioned in these texts appear as "Christ, the world's redeemer, / As a victim won the day."
In the second verse, the lines "when at length the fullness / Of the appointed time was come, / He, the Word, was born of woman" paraphrase Galatians 4:4, although "the Word... born of woman" also incorporates the first half of John 1:14: "And the Word became flesh and dwelt among us...."
John 19:30 appears at the end of the third verse: "Did His work, and met His death; / Like a lamb He humbly yielded / On the cross His dying breath."
In the second verse, the lines "when at length the fullness / Of the appointed time was come, / He, the Word, was born of woman" paraphrase Galatians 4:4, although "the Word... born of woman" also incorporates the first half of John 1:14: "And the Word became flesh and dwelt among us...."
John 19:30 appears at the end of the third verse: "Did His work, and met His death; / Like a lamb He humbly yielded / On the cross His dying breath."