" The Christian preacher is not the successor to the Greek orator, but of the Hebrew prophet,” writes Forsyth. “It is one thing to have to rouse or persuade people to do something. . . . It is another to have to induce them to trust somebody and renounce themselves for him. . . . The orator stirs men to [action], the preacher invites them to be redeemed.”8 "

― Timothy J. Keller , Preaching: Communicating Faith in an Age of Skepticism