"The following pages do not appear to need any extended preface; their topic is set forth in the first lines of the first chapter. With what success it has been handled is another matter. But as a writer reviews his own words, it is inevitable that some sort of envoi should present itself to his mind. In this case the envoi seems to me to be the vital necessity of personal holiness in the Christian Minister, in order to the right working of the Christian Ministry; a personal holiness which shall be no mere form moulded from without but a life developed into manifestation and action from within."