Jerusalem (hymn)
"Jerusalem" was a Human Christian hymn adapted from an English poem.

In 2371, while inebriated, Julian Bashir and Miles O'Brien sang the last five lines of the song (probably having previously sung the beginning), then started again at the beginning a short time later, singing the first two lines. ()

O'Brien recalled singing "Jerusalem" with Bashir shortly before leaving Deep Space 9 for Earth and his new post at Starfleet Academy after the end of the Dominion War. ()

Lyrics (excerpt) 
Bring me my Chariot of Fire!

I will not cease from Mental Fight,
Nor shall my Sword sleep in my hand,
Till we have built Jerusalem
In England's green and pleasant Land.

External link 
 

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Earth musical compositions