The August release of Afro-Americana Imprints, 1535-1922: From the Library Company of Philadelphia includes publications with differing religious perspectives on American slavery. Highlighted here are works by one of the founders of the United States General Convention of Universalists, Elhanan Winchester, and by two lesser-known authors.

The Reigning Abominations, Especially the Slave Trade (1788)
By Elhanan Winchester
Elhanan Winchester was an itinerant preacher, five-time husband, and a founder of what became the Universalist Church of America. He was born in Brookline, Massachusetts, in 1751 and was ordained a Baptist minister 20 years later. During his ministry, Winchester travelled to South Carolina and Virginia preaching to both blacks and whites and sharing openly the gospel with slaves. In 1781 his congregation was excommunicated by the Baptist Church.
Describing his experience in Virginia, Winchester writes:
Though I have been in Virginia but a few days, I have seen and heard that which greatly affects my heart, and I shall therefore take notice of some of those abominations which, I fear, greatly prevail in this country, and which threaten it with ruin and desolation, unless repentance and reformation prevent.