And might I rather predictably suggest taking a look at my hymn At the Lord's Appearing, sung to King's Weston, available with a couple of dozen other texts, a great deal at CanticaNOVA.

Sample verse:

Four and twenty elders cast before Him crowns.
Little children greet Him: "Blest is He who comes!"
What can bring the Gentiles to acclaim His praise?
Purity, and wisdom, and the light of grace.

Looks like the folks at St. Mary's in Norwalk, CT may have been singing this hymn on the Feast of Epiphany, according to this Rorate Caeli article.

We sang it on Holy Name Sunday and will sing it this coming Sunday as well. The text is so beautiful.

O worship the Lord in the beauty of holiness!
Bow down before Him, His glory proclaim;
With gold of obedience, and incense of lowliness,
Kneel and adore Him: the Lord is His Name!

Low at His feet lay thy burden of carefulness,
High on His heart He will bear it for thee,
And comfort thy sorrows, and answer thy prayerfulness,
Guiding thy steps as may best for thee be.

Fear not to enter His courts in the slenderness
Of the poor wealth thou wouldst reckon as thine;
For truth in its beauty, and love in its tenderness,
These are the offerings to lay on His shrine.

These, though we bring them in trembling and fearfulness,
He will accept for the Name that is dear;
Mornings of joy give for evenings of tearfulness,
Trust for our trembling and hope for our fear.

O worship the Lord in the beauty of holiness!
Bow down before Him, His glory proclaim;
With gold of obedience, and incense of lowliness,
Kneel and adore Him: the Lord is His Name!

Words: John S. B. Monsell, Hymns of Love and Praise, 1863.
Music: Was Leb­et, Was Schweb­et, Chor­al-Buch vor Jo­hann Hein­rich Rein­hardt (Ut­ting­en, Ger­ma­ny: 1754)

ADD: I was mistaken: they did not sing this hymn at the Mass. It was just the title of the article.

The music program (from St. Mary's website):

Sunday, 5 January 2014, 9:30 a.m.
Music for the Feast of the Epiphany
Solemn Mass in the Presence of a Greater Prelate
His Excellency Frank J. Caggiano
Bishop of Bridgeport
Prelude: Aequale No. 2 (Anton Bruckner, 1824-1896)
Motet at the procession: Ecce sacerdos magnus (Bruckner)
Prelude: Versets on A solis ortus cardine: En taille (Nicolas de Grigny, 1672-1703)
Cantus Missæ for double choir (Op. 109) (Josef Gabriel Rheinberger, 1839-1901)
Gregorian Mass of the Epiphany: Ecce advenit
Motet at the Offertory: Videntes stellam (Orlando di Lasso, c.1532-1594)
Motet at the Communion: Magi veniunt (Jacobus Clemens non Papa, c.1510-1556)
Motet at the Communion: Surge, illuminare, Jerusalem (Giovanni Pierluigi da Palestrina, c.1525-1594)
Motet at the Blessing of the Altarpiece: Cantemus Domino (Laudemus nunc Dominum, secunda pars) (Jacob Obrecht, c.1458-1505)
Postlude: Final from Symphony No. 1 (Louis Vierne, 1870-1937)