This is my favorite Christmas hymn, both for the chant and for the text. It sums everything up so beautifully.
Of the Father’s love begotten
Ere the world 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
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Oh, that birth forever blessed
When the virgin, full of 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
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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
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Let the heights of heav’n adore him
Angel hosts, his praises sing
Pow’rs, dominions, bow before him
And extol our God and King
Let no tongue on earth be silent
Ev’ry voice in concert ring
Evermore and evermore
—Marcus Aurelius Clemens Prudentius—