It 1873, D.L. Moody first heard British evangelist Henry Varley utter these life changing words: "The world has yet to see what God can do with and for and through and in a man who is fully and wholly consecrated to Him." It was after an all-night prayer meeting in Dublin, at the home of Henry Bewley. Varley did not even remember making the statement when Moody reminded him of it a year later. "As I crossed the wide Atlantic," Moody said, "the boards of the deck...were engraved with them, and when I reached Chicago, the very paving stones seemed marked with them." The result: Moody decided he was involved in too many ministries to be effective and therefore began to concentrate on evangelism.
The Wycliffe Handbook of Preaching & Preachers, by Warren Wiersbe