Luke 2:4-7: "4 And Joseph also went up from Galilee, from the town of Nazareth, to Judea, to the city of David, which is called Bethlehem, because he was of the house and lineage of David, 5 to be registered with Mary, his betrothed, who was with child. 6 And while they were there, the time came for her to give birth. 7 And she gave birth to her firstborn son and wrapped him in swaddling cloths and laid him in a manger, because there was no place for them in the inn."
Hebrews 4:14-16: "14 Since then we have a great high priest who has passed through the heavens, Jesus, the Son of God, let us hold fast our confession. 15 For we do not have a high priest who is unable to sympathize with our weaknesses, but one who in every respect has been tempted as we are, yet without sin. 16 Let us then with confidence draw near to the throne of grace, that we may receive mercy and find grace to help in time of need."
Job 19:25-27: "25 For I know that my Redeemer lives, and at the last he will stand upon the earth. 26 And after my skin has been thus destroyed, yet in my flesh I shall see God, 27 whom I shall see for myself, and my eyes shall behold, and not another."
Revelation 7:9-12: "9 After this I looked, and behold, a great multitude that no one could number, from every nation, from all tribes and peoples and languages, standing before the throne and before the Lamb, clothed in white robes, with palm branches in their hands, 10 and crying out with a loud voice, 'Salvation belongs to our God who sits on the throne, and to the Lamb!' 11 And all the angels were standing around the throne and around the elders and the four living creatures, and they fell on their faces before the throne and worshiped God, 12 saying, 'Amen! Blessing and glory and wisdom and thanksgiving and honor and power and might be to our God forever and ever! Amen.'"
+++
The text is public domain:
Once in royal David's city
Stood a lowly cattle shed,
Where a mother laid her baby
In a manger for His bed;
Mary was that mother mild,
Jesus Christ her little child.
He came down to earth from heaven,
Who is God and Lord of all,
And His shelter was a stable,
And His cradle was a stall;
With the poor and mean and lowly
Lived on earth our Savior holy.
For He is our childhood's pattern,
Day by day like us He grew;
He was little, weak, and helpless,
Tears and smiles like us He knew;
And He feels for all our sadness,
And He shares in all our gladness.
And our eyes at last shall see Him,
Through His own redeeming love;
For that child so dear and gentle
Is our Lord in heav'n above;
And he leads His children on
To the place where He is gone.
Not in that poor, lowly stable
With the oxen standing by
Shall we see Him, but in heaven,
Set at God's right hand on high.
Then like stars His children, crowned,
All in white, His praise will sound!
+++
The Biblical references here are clearly divided among the verses. The Luke 2 text is the basis of the whole hymn but is most prominent in the first two verses. The third verse expands on a section of Hebrews 4:15: "we do not have a high priest who is unable to sympathize with our weaknesses." The beginning of the fourth verse ("And our eyes at last shall see Him") echoes Job, and the end of the fifth verse describes the scene in the Revelation text.