Out of the turmoil incidental to the Great Revival came a number of schisms among the evangelical denominations active in the West. Doctrinally conservative, the Presbyterians were quick to scent heresy and to throw out the unorthodox. As a result, they soon began to divide by fission. New Lights, Cumberland Presbyterians, Seceders, Old School and New School Presbyterians, and many other names for dissident groups indicate the division within the ranks. The Baptists and Methodists were also riven by controversy. But these sectarian divisions owe less to the frontier than they do to the beliefs implicit in Protestantism. They merely illustrate a tendency which had been in operation since the Reformation. When the Reformers conceded that men could read and interpret the Scriptures according to the dictates of their consciences and could dispense with a priest as intercessor with God, they opened a Pandora's box which they could never close thereafter.

—Louis B. Wright, Culture on the Moving Frontier