I will read a few sayings of our Savior, recorded in the second and third verses of the 14th chapter of the Gospel according to St. John:

"In my Father's house are many mansions; if it were not so, I would have told you. I go to prepare a place for you."

Journal of Discourses/Volume 14/The Redemption of the Earth—Pre-existence—Marriage

"And if I go and prepare a place for you, I will come again, and receive you unto myself; that where I am, there ye may be also."

Journal of Discourses/Volume 14/The Redemption of the Earth—Pre-existence—Marriage

It is not very customary for the Latter-day Saints to select a text and to confine their remarks to the subject matter thereof; yet I do not know that there is any particular harm in doing so, provided we do not limit the operations of the Spirit of God upon ourselves. It is my most earnest desire, when addressing a public assembly, to understand the mind and will of God in relation to what should be said to them. No man, by his own wisdom, understands the wants of his fellow-creatures in all respects, but the Spirit of the Most High understands the circumstances of all the people, and that spirit, having all power and wisdom, is capable of moving upon the hearts of His servants to speak in the very moment what is most adapted to the condition of the people.

Journal of Discourses/Volume 14/The Redemption of the Earth—Pre-existence—Marriage

I listened with great interest this forenoon to the many subjects which were briefly touched upon by Elders Woodruff and Smith, one of which, in a particular manner, seemed to rest with considerable bearing upon my mind: that was the condition of mankind in a future state, and the principalities, powers, glories, dominions, and exaltations that will be enjoyed by the true Saints. This is a subject of special interest to the Latter-day Saints, and we should look forward with feelings of great joy in anticipation of the future, and we should understand what is necessary for us to do in this short life, to secure the great blessings promised to the faithful hereafter. Jesus, in the passage I have read, has informed the world that there are many mansions in his Father's house. This, however, was not spoken especially to the world, but to the Apostles and Disciples who were gathered around him. The Father's house! There is a great deal comprehended in these words. Where is it, and what kind of a house may we conclude it to be? Are we to understand by the term house, used in this passage, small buildings such as are erected for our residence, here on earth, and if not, what are we to understand? I understand that God is a Being who, as the Scriptures declare, inhabits eternity. Eternity is His dwelling place, and in this eternity are vast numbers of worlds—creations formed by His mighty hands; consequently when we speak of the Father's house we are to understand it in the Scriptural sense, in the idea that is conveyed by many of the inspired writers. It is declared in many places that eternity is His habitation. He is not the God of one little world like ours; He is not a Being who presides over a few isolated worlds in one part of eternity, and all the rest left to go at random; He is not confined to the worlds that are made, comparatively speaking, today; but all worlds, past, present, and future, from eternity to eternity, may be considered His dominions, and His places of residence, and He is omnipresent. Not personally; this would be impossible, for a person can only be in one place at the same instant, whether he be an immortal or a mortal personage; whether he be high, exalted, and filled with all power, wisdom, glory, and greatness, or poor, ignorant, and humble. So far as the materials are concerned, a personage can only occupy one place at the same moment. That is a self-evident truth, one that cannot be controverted. When we speak, therefore, of God being omnipresent we do not mean that His person is omnipresent, we mean that His wisdom, power, glory, greatness, goodness, and all the characteristics of His eternal attributes are manifested and spread abroad throughout all the creations that He has made. He is there by His influence—by His power and wisdom—by His outstretched arm; He, by His authority, occupies the immensity of space. But when we come to His glorious personage, that has a dwelling place—a particular location; but where this location is, is not revealed. Suffice it to say that God is not confined in His personal character to one location. He goes and comes; He visits the various departments of His dominions, gives them counsel and instruction, and presides over them according to His own will and pleasure.