J.S. Bach, "O Haupt voll Blut und Wunden" ("O Sacred Head Sore Wounded") from the St. Matthew Passion

This performance is by the Holland Boys' Choir and sung in Dutch. Thanks to Ikje86 for the clip. (For a modern, secular song to this tune by Paul Simon, see here.)

I came to you as the least of your brothers and sisters; I was hungry and you gave me no food. I was thirsty and you gave me no drink. I was a stranger and you did not welcome me, naked and you did not clothe me, sick and in prison and you did not visit me.

--from the Reproaches