The correct answer to this open question is the following.
The role played in abolitionism by Christianity and by the revolutionary tradition in the Atlantic world was very important to sustain a permanent demand to abolish slavery in the United States. Both played an important role in shaping the views of black and white abolitionists.
However, Christianity could have been a determinant factor to convince Americans due to the fact that religion used examples from Biblical passages of the behavior, conduct, and actions of Jesus of Nazareth.
Since the Quakers' time in the Pennsylvania colony, their ideas of love one another, despite race, the color of skin, or nationality, permeated in most part of the northern states. Indeed, it was a Quaker woman -Elizabeth Coltman- who influenced the foundation of an Anti-Slavery Society in America when she published the book "Immediate, not Gradual Abolition."