From the very beginning [of Methodism], from the time that four young men united together, each of them was homo unius libri -- a man of one book. God taught them all to make His "Word a lantern unto their feet, and a light in all their paths." They had one, and only one rule of judgment with regard to all their tempers, words, and actions, namely, the oracles of God. They were one and all determined to be Bible-Christians. They were continually reproached for this very thing; some terming them in derision Bible bigots; others, Bible-moths -- feeding, they said, upon the Bible as moths do upon cloth. And indeed unto this day it is their constant endeavor to think and speak as the oracles of God.
-- John Wesley, in his sermon On God's Vineyard, 1787