"If you preach a sermon that would be acceptable to the members of a Jewish synagogue or a Unitarian congregations, there is something radically wrong with it . . . There is something distinctive in a Christian message. What makes it distinctive is that all-pervading presence of a saving and sanctifying Christ. Jesus Christ must be at the heart of every sermon you preach. This is just as true of edificational preaching as it is of evangelistic preaching."