(6) The plan, therefore, which I propose in the examination of the remaining portion of the Apocalypse is the following: (a) To explain the meaning of the symbols; that is, to show, as clearly as possible, what those symbols properly express, independently of any attempt to apply them. This opens, of itself, an interesting field of investigation, and one where essential service may be done, even if nothing further is intended. Without any reference to the _application_ of those symbols, this, of itself, is an important work of criticism, and, if successfully done, would be rendering a valuable service to the readers of the sacred volume. (b) To state, as briefly as possible, what others who have written on this book, and who have brought eminent learning and talent to bear on its interpretation, have supposed to be the true interpretation of the symbols employed by John, and in regard to the times in which the events referred to would occur. It is in this way only that we can be made acquainted with the real progress made in interpreting this book, and it will be useful at least to know how the subject has struck other minds, and how and why they have failed to perceive the truth. I propose, therefore, to state, as I go along, some of the theories which have been held as to the meaning of the Apocalypse, and as to the events which have been supposed by others to be referred to. My limits require, however, that this should be briefly done, and forbid my attempting to examine those opinions at length. (c) To state, in as brief and clear a manner as possible, the view which I have been led to entertain as to the proper application of the symbols employed in the book, with such historical references as shall seem to me to confirm the interpretation proposed. (d) Where I cannot form an opinion as to the meaning, to confess my ignorance. He does no service in a professed interpretation of the Bible who passes over a difficulty without _attempting_ to remove it, or who, to save his own reputation, conceals the fact that there is a real difficulty; and he does as little service who is unwilling to confess his ignorance on many points, or who attempts an explanation where he has no clear and settled views. As his opinion can be of no value to anyone else unless it is based on reasons in his own mind that will bear examination, so it can usually be of little value unless those reasons are stated. It is as important for his readers to have those reasons before their own minds as it is for him; and unless he has it in his power to _state_ reasons for what he advances, his opinions can be worth nothing to the world. He who lays down this rule of interpretation may expect to have ample opportunity, in interpreting such a book as the Apocalypse, to confess his ignorance; but he who interprets a book which he believes to be inspired, may console himself with the thought that what is now obscure will be clear hereafter, and that he performs the best service