Usually, A Collection of Prayers does not feature hymns, since another fine website, Hymnary.org, has extensive information, multiple translations, and charts on hymns appearance in hymnals. “O Gracious Light” is an exception because of its liturgical use.
“O Gracious Light” was first recorded by an unknown author in the Apostolic Constitutions, which was written in the late 3rd or early 4th century. Basil of Caesarea (329–379) spoke of the singing of the Phos Hilaron as a cherished tradition of the church, the hymn being already considered old in his day (though some attribute the composition of the song to Basil himself). (See article on Wikipedia.) It is an evening hymn, often used as part of the Lucernarium, the Service of Light. Ideally, candles would be lit as the hymn is sung. Several versions of Vespers (Evening Prayer) include some version of “O Gracious Light” as an opening hymn.
O gracious light,
pure brightness of the everliving Father in heaven,
O Jesus Christ, holy and blessed!
Now as we come to the setting of the sun,
and our eyes behold the vesper light,
we sing your praises, O God: Father, Son, and Holy Spirit.
You are worthy at all times to be praised by happy voices,
O Son of God, O Giver of Life,
and to be glorified through all the worlds.
Source: Book of Common Prayer (U. S.), 1979, p. 112.
Original in Greek:
Φῶς ἱλαρὸν
ἁγίας δόξης ἀθανάτου Πατρός, οὐρανίου,
ἁγίου, μάκαρος, Ἰησοῦ Χριστέ,
ἐλθόντες ἐπὶ τὴν ἡλίου δύσιν,
ἰδόντες φῶς ἑσπερινόν,
ὑμνοῦμεν Πατέρα, Υἱόν, καὶ ἅγιον Πνεῦμα, Θεόν.
Ἄξιόν σε ἐν πᾶσι καιροῖς ὑμνεῖσθαι φωναῖς αἰσίαις,
Υἱὲ Θεοῦ, ζωὴν ὁ διδούς·
διὸ ὁ κόσμος σὲ δοξάζει.
“O Gracious Light” has been translated into English many times into both prose and poetic versions.
Lutheran Book of Worship, 1978 (Prose)
Joyous light of glory of the immortal Father,
Heavenly, holy, blessed Jesus Christ,
We have come to the setting of the Sun
And we look to the evening light.
We sing to God, the Father, Son and Holy Spirit.
You are worthy of being praised with pure voices forever.
O Son of God, O Giver of life,
The universe proclaims your glory.
This is a copyrighted text, © 1978 Augsburg Fortress Publishers
Robert Bridges, d. 1930 (Poetic)
O gladsome light, O grace
of God the Father’s face,
the eternal splendour wearing;
celestial, holy, blest,
our Savior Jesus Christ,
joyful in thine appearing.
Now, ere day fadeth quite,
we see the evening light,
our wonted hymn outpouring;
Father of might unknown,
thee, his incarnate Son,
and Holy Spirit adoring.
To thee of right belongs
all praise of holy songs,
O Son of God, Lifegiver;
thee, therefore, O Most High,
the world doth glorify,
and shall exalt forever.
F. Bland Tucker, d. 1984 (Poetic)
O gracious Light, Lord Jesus Christ,
in you the Father’s glory shone.
Immortal, holy, blest is he,
and blest are you, his holy Son.
Now sunset comes, but light shines forth,
the lamps are lit to pierce the night.
Praise Father, Son, and Spirit; God
who dwells in the eternal light.
Worthy are you of endless praise,
O Son of God, Life-giving Lord;
wherefore you are through all the earth
and in the highest heaven adored.
This is a copyrighted text, © The Church Pension Fund
Marty Haugen, (Poetic) from Holden Evening Prayer
Joyous light of heavenly glory,
loving glow of God’s own face,
you who sing creation’s story,
shine on every land and race.
Now as evening falls around us,
we shall raise our songs to you.
God of daybreak, God of shadows,
come and light our hearts anew.
In the stars that grace the darkness,
in the blazing sun of dawn,
in the light of peace and wisdom,
we can hear your quiet song.
Love that fills the night with wonder,
love that warms the weary soul,
love that bursts all chains asunder,
set us free and make us whole.
You who made the heaven’s splendor,
every dancing star of night,
make us shine with gentle justice,
let us each reflect your light.
Mighty God of all creation,
gentle Christ who lights our way,
loving Spirit of salvation,
lead us on to endless day.
The hymn, “Joyous Light of Heavenly Glory” begins at 0:38.
This is a copyrighted text, © 1987 GIA Publications, Inc.
Michael Schultz, for Christian Worship (2021), poetic
Gladdening light of purest glory,
shining down from heaven on high,
from the ever-living Father–
hail, most blessed Jesus Christ.
In the fading light of evening,
as the setting sun departs,
Father, Son, and Holy Spirit–
we adore you, Lord our God.
For your gift of life unending,
joyful voices ever sing
hymns of praise that rightly honor
Son of God, your saving name.
This is a copyrighted text, © 2021 Northwestern Publishing House.
of the communion services. So we make the texts available here. Along with the services below, 
A Collection of Prayers 