The role of religion was a major role into the abolitionist of slavery. The Christians such as William Wilberforce in Great Britain, John Woolman in America, and many, many others have devoted their lives representing the name of Christ to end slavery. They all thought slavery was wrong not just because of common sense but the slaves treatment were malicious. They had to be chattel slaves. Which in the Bible teaching of the Old Testament or the New testament it was not allowed or squared, of kidnapping the African American. The taking them out to the market striped naked to be sold. Having slavery was injustice, they are human beings not a property that you owned and you can do whatever you want with it.
Some of the people who protested against slavery in the name of Christ.