'Twas mercy brought me from my Pagan land,
Taught my benighted soul to understand
That there's a God, that there's a Saviour too:
Once I redemption neither sought nor knew.
Some view our sable race with scornful eye,
"Their colour is a diabolic die."
Remember, Christians, Negro's, black as Cain,
May be refin'd, and join th' angelic train.

Phillis Wheatley

http://www.poemhunter.com/poem/on-being-brought-from-africa-to-america/