O'Brien and Bashir sing "Jerusalem"
"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. (DS9: "Explorers")
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. (DS9: "What You Leave Behind")
The unnamed poem from which "Jerusalem" was adapted was published in 1808 as part of a preface to "Milton: A Poem In 12 Books" by William Blake. Sometimes referred to as "And did those feet in ancient time...", the poem conflates Jesus Christ and poet John Milton as a result of Blake's devout Christianity and his view of Milton as a quasi-deity.
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.