Not assuming the gospel

Could you have preached that sermon if Christ had not died on the cross? Could you have developed that Christian leadership principle had Christ not been crucified? I’m not saying be impractical—the Bible has much to say about being practical—but make sure that the practical is tied to the message of Jesus. Otherwise we are on the road to an assumption that will lose the gospel.
   – p. 41, Marks of the Messenger by Mack Stiles