Biblical citations in the hymnal: Isaiah 60:3-6, Revelation 21:22-27, Matthew 2:11
Isaiah 60:3-6: "3 And nations shall come to your light, and kings to the brightness of your rising.
"4 Lift up your eyes all around, and see; they all gather together, they come to you; your sons shall come from afar, and your daughters shall be carried on the hip. 5 Then you shall see and be radiant; your heart shall thrill and exult, because the abundance of the sea shall be turned to you, the wealth of the nations shall come to you. 6 A multitude of camels shall cover you, the young camels of Midian and Ephah; all those from Sheba shall come. They shall bring gold and frankincense, and shall bring good news, the praises of the LORD."
Revelation 21:22-27: "22 And I saw no temple in the city, for its temple is the Lord God Almighty and the Lamb. 23 And the city has no need of sun or moon to shine on it, for the glory of God gives it light, and its lamp is the Lamb. 24 By its light will the nations walk, and the kings of the earth will bring their glory into it, 25 and its gates will never be shut by day - and there will be no night there. 26 They will bring into it the glory and the honor of the nations. 27 But nothing unclean will ever enter it, nor anyone who does what is detestable or false, but only those who are written in the Lamb's book of life."
Matthew 2:11: "And going into the house they [the wise men] saw the child with Mary his mother, and they fell down and worshiped him."
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The text is public domain:
Hail, O Source of ev'ry blessing,
Father of our human race!
Gentiles now, Your grace possessing,
In Your courts obtain a place.
Grateful now, we fall before You,
In Your Church rejoice to live,
See Your glory and adore You,
Thankful for the grace You give.
Once far off but now invited,
We approach Your sacred throne,
In Your covenant united,
Reconciled, redeemed, made one.
Now revealed to eastern sages,
See the Star of Mercy shine,
Myst'ry hid in former ages,
Myst'ry great of love divine.
Hail, O all-inviting Savior!
Gentiles now their off'rings bring,
In Your temples seek Your favor,
Jesus Christ, our Lord and King.
May we, body, soul, and spirit,
Live devoted to Your praise,
Glorious realms of bliss inherit,
Grateful anthems ever raise.
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The verses from Isaiah are present in the hymn's first verse and the first half of the second. Both describe a large gathering. In Isaiah, there's even structural parallelism to emphasize this: "they all gather together, they come to you; your sons shall come from afar, and your daughters shall be carried on the hip." In the hymn, it appears in phrases like "Gentiles now, Your grace possessing, / In Your courts obtain a place" and "Once far off but now invited, / We approach Your sacred throne, / In Your covenant united."
Matthew 2:11 is in the second half of the second verse ("Now revealed to eastern sages"). This leaves the text from Revelation, but the only connection I can see between it and the third verse is the line "Glorious realms of bliss inherit." This seems to refer to the light and the glory mentioned in the Revelation text.
