That the equality of human souls in the sight of God ought to be translated into a political structure of equal political rights has come to be regarded as the most authentic interpretation of the Gospel itself. Slavery, and the imposition of all arbitrary forms of inequality of man by man, has come to be seen as demeaning to the souls of God's creation.

p. 151 - A New Birth of Freedom: Abraham Lincoln and the Coming of the Civil War (2000)