This is arguably the oldest extant sample of English poetry. It is attributed by Bede to the poet Caedmon of the early Middle Ages and, if so, it would be Caedmon's only surviving work (though Caedmon was known to have written a great many works in his day, all other surviving works attributed to him have since been shown to be the work of later poets.)
Cædmon's Hymn to God
By Cædmon (Ostensibly)
Translated by A.Z. Foreman
Click to hear me recite the poem in Old English
Hail now the holder of heaven's realm,
That architect's might, his mind's many ways,
Lord forever and father of glory,
Ultimate crafter of all wonders,
Holy Maker who hoisted the heavens
To roof the heads of the human race,
And fashioned land for the legs of man,
Liege of the worldborn, Lord almighty.
Nū sculon heriġean heofonrīċes weard,
Meotodes meahte ond his mōdġeþanc,
weorc wuldorfæder, swā hē wundra ġehwæs,
ēċe Drihten, ōr onstealde.
Hē ǣrest sceōp eorðan bearnum
heofon tō hrōfe, hāliġ Scyppend;
þā middanġeard monncynnes weard,
ēċe Drihten, æfter tēode
fīrum foldan, Frēa ælmihtiġ.