While their friends at OCP set this ancient text to WESTMINSTER ABBEY, which I blogged here, GIA set it to St THOMAS (John Wade). The text is C11 Angularis fundamentum, translated C19 by John Neale. It is in the “Church” section of Gather 3rd ed. thematically.
The sheet music is at Hymnary. The text below is as altered by GIA.
1 Christ is made the sure foundation,
Christ, our head and cornerstone,
Chosen of the Lord, and precious,
Binding all the Church in one,
Holy Zion’s help forever,
And our confidence alone.
2 To this temple, where we call You,
Come, O Lord of Hosts, today;
With y0ur steadfast loving kindness,
Hear Your servants as they pray;
And Your fullest benediction
shed in all its bright array.3 Here bestow on all your servants
What they ask of you again,
What they gain from You, forever
With the blessed to retain,
And hereafter in your glory
Evermore with you to reign.4 Praise and honor to the Father,
Praise and honor to the Son,
Praise and honor to the Spirit,
Ever Three, and ever one:
One in might, and one in glory,
While unending ages run!