"Pure" Christianity and A Slave-Based Christianity

In this short excerpt, the abolitionist and former slave Frederick Douglass describes the tension between faith in Christ and faith in a form of Christianity willing to enslave an entire race of people for its own selfish ends:

What I have said respecting and against religion, I mean strictly to apply to the slaveholding religion of this land, and with no possible reference to Christianity proper; for, between the Christianity of this land, and the Christianity of Christ, I recognize the widest possible…