The discourse with which this controversy begins appears in chapter one as it did in the _Era_; unchanged except by the enlargement of a quotation or two from Dr. Draper's works, and Sir Robert Ball's writings, and the addition of one or two notes, with here and there a mere verbal change which in no way affects the thought or argument of the discourse, as I recognize the fact that any alteration which would change the argument or introduce new matter in the discourse, would be unfair to Mr. Van Der Donckt. The Rev. gentleman's Reply is, of course, exactly as it appeared in the _Improvement Era_ for August and September, 1902. In the Rejoinder I have felt more at liberty, and therefore have made some few changes in the arrangement of paragraphs, and have here and there strengthened the argument, though even in this division of the discussion the changes in the _Era_ copy are but slight. In chapter four I publish another discourse--_Jesus Christ: the Revelation of God_, which I trust will emphasize and render even more clear than my first discourse the belief of the Church that Jesus Christ is the complete and perfect revelation of God;--that such as Jesus Christ is, God is. In chapters five, six, seven and eight is a collection of utterances from our sacred scriptures, and from some of the prophets in the Church, on the doctrine of Deity, which I may say without reserve will be found extremely valuable to the student of this great subject; and these passages are so arranged as to make clear the fact that our doctrines on the subject of Deity are today what they have been from the commencement; and while there may have been an unfolding of the doctrines, an enlargement of our understanding of them, there is nothing in our doctrines on Deity today but what was germinally present in that first great revelation received by the Prophet Joseph Smith, in which God made himself known once more to a prophet, who knew him, as Moses did, face to face--as a man knows his friend. B. H. Roberts. Salt Lake City, December, 1903. CONTENTS. CHAPTER I. THE "MORMON" DOCTRINE OF DEITY. Form of God. The Oneness of God. The Plurality of Gods. The Future Possibilities of Man. CHAPTER II. REPLY TO ELDER ROBERTS' "MORMON" VIEW OF DEITY, BY REV. C. VAN DER DONCKT, OF THE CATHOLIC CHURCH, POCATELLO, IDAHO. Philosophical Proofs of God's Simplicity or Spirituality. Man Can Never Become as God. The Unity of God. CHAPTER III. A REJOINDER TO REV. C. VAN DER DONCKT'S REPLY. The Form of God. Of God Being Invisible. Of the Incarnation of the Son of God. Mr. Van Der Donckt's "Philosophical Proofs" of the Form and Nature of God. Of Mr. Van Der Donckt's Premise. Of the Doctrine of God's "Simplicity" Being of Pagan Rather than of Christian Origin. Of Jesus Christ Being Both Premise and Argument Against Mr. Van Der Donckt's Philosophical Argument. More of Mr. Van Der Donckt's "Philosophy." Mr. Van Der Donckt's Contrast Between Man and God.