Ether 2:12 - If they will but serve Christ

12 Behold, this is a choice land, and whatsoever nation shall possess it shall be free from bondage and from captivity, and from all other nations under heaven, if they will but serve the God of this land, who is Jesus Christ, who hath been manifested by the things which we have written.

Two things stand out in the verse above. The first: Christ is the "God of this land" (Ether 2:12).  The second: This land could very much represent the Celestial Kingdom. These two concepts work hand in hand, really.
Christ is declared the God of this land. But isn't Christ the God of all the earth and of all mankind? Why take the time to point specifically at this land and declare Christ as the God of it? Likely because this land is promised. It is choice above all other lands. It has been especially set aside for the righteous and holy.
So what does this have to do with the Celestial Kingdom? Well, think about it; Christ is the God of this land, which has been especially set aside for His people and for the righteous. Those who practice iniquity will be wiped from off of the face of it. Likewise, we become celestial beings as we serve the master and seek after His will. The Celestial Kingdom has been especially set aside for those whom accept the gospel and live the commandments.