Of the Father's Love Begotten from LSB (Lutheran Service Book) 384 was written by Aurelius Prudentius in 413, translated by John. M. Neale, 1818-1866 and Henry W. Baker, 1821-1977.  

Marcus Aurelius Clemens Prudentius, "The Christian Pindar" was born in northern Spain, a magistrate whose religious convictions came late in life. His subsequent sacred poems were literary and personal, not, like those of St. Ambrose, designed for singing. Selections from them soon entered the Mozarabic rite, however, and have since remained exquisite treasures of the Western churches. His Cathemerinon liber, Peristephanon, and Psychomachia were among the most widely read books of the Middle Ages. A concordance to his works was published by the Medieval Academy of America in 1932. There is a considerable literature on his works.
-The Hymnal 1940 Companion




1 Of the Father’s love begotten 
ere the worlds began to be, 
he is Alpha and Omega — 
he the source, the ending he, 
of the things that are, that have been, 
and that future years shall see 
evermore and evermore.

2 O that birth forever blessed, 
when a virgin, blest with grace, 
by the Holy Ghost conceiving, 
bore the Savior of our race; 
and the babe, the world’s Redeemer, 
first revealed his sacred face,
evermore and evermore.

3 This is he whom seers in old time 
chanted of with one accord, 
whom the voices of the prophets 
promised in their faithful word; 
now he shines, the long-expected; 
let creation praise its Lord
evermore and evermore.

4 Let the heights of heaven adore him; 
angel hosts, his praises sing: 
powers, dominions, bow before him 
and extol our God and King; 
let no tongue on earth be silent, 
every voice in concert ring
evermore and evermore.

5 Christ, to you, with God the Father 
and the Spirit, there shall be 
hymn and chant and high thanksgiving 
and the shout of jubilee: 
honor, glory, and dominion 
and eternal victory
evermore and evermore.