In the mid-eighteenth century, John Wesley and George Whitefield became famous through their revivalistic preaching. Although based on a Scripture, it differed from Reformed preaching in that it was not exegetical and did not place as much emphasis on correct grammatical, historical, and theological contexts. Instead, Wesley and Whitefield developed topics and presented applications for their listeners. Sin, grace, and reconciliation with God were their favorite themes. Wesley united this message with a zeal for sanctification. This style of preaching was directed particularly toward the poor, resulting in a tremendous movement for social and political justice.