What is Conversion? Man must be a new creature, and converted from his own righteousness to the righteousness of the Lord Jesus Christ. Conviction will always precede spiritual conversion, therefore the Protestant divines make this distinction; you may be convinced and not converted, but you cannot be converted without being convinced. And if we are truly converted, we shall not only be turned and converted from sinful self, but we shall be converted from righteous self; that is the devil of devils. - George Whitfield (1714-1769)
Taken from 20 Centuries of Great Preaching; Volume 3 (Waco, TX: Word Books Publishing, 1974), p. 139. and excerpted from Whitfield Gold, Pure. Refined. by Ray Comfort (Gainsville, FL: Bridge-Logos, 2006), p. 102.