Christ's trumpet-call to the ministry or, The preacher and the preaching for the present crisis This book, "Christ's trumpet-call to the ministry. Or, The preacher and the preaching for the present crisis", by D.S. Gregory, is a replication of a book originally published before 1896. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.