The Church of Jesus Christ of Latter-day Saints is the ecclesiastical kingdom of God on earth.¹ In this earthly kingdom, the priesthood is organized into offices, quorums, and councils.² This organization is the starting point for the full government of God³ that will begin to function during the future gathering of saints at Adam-ondi-Ahman.⁴

When Christ receives all priesthood keys at Adam-ondi-Ahman,⁵ he will implement his millennial government by merging the ecclesiastical and political kingdoms⁶ into a theocracy.⁷ The quorums and offices of the priesthood will be discontinued,⁸ and the priesthood will be reorganized according to the Patriarchal Order of the Priesthood by families.⁹ The Patriarchal Order is the priesthood organization for the Church of the Firstborn¹⁰ in its eternal form.¹¹

The gathering at Adam-ondi-Ahman will begin the era of open communion¹² between worthy mortal members from The Church of Jesus Christ of Latter-day Saints with the general assembly in heaven¹³ and those from the Church of the Firstborn.¹⁴ Daniel 7:10 identifies the general assembly as the ten thousand times ten thousand (or 100 million) celestial-worthy people that will stand before the Ancient of Days at Adam-ondi-Ahman.¹⁵ The same verse also identifies another thousand thousands (one million) of ministers who are exaltation-worthy members of the Church of the Firstborn.¹⁶ John symbolically describes the same one million ministers as 144,000 Servants who minister as saviors on mount Zion¹⁷ to bring as many as will come into the Church of the Firstborn.¹⁸

The ecclesiastical and political kingdoms of God will begin to merge at Adam-ondi-Ahman¹⁹ when Christ appears and takes dominion on earth from Satan.²⁰ The perfected millennial government of Zion²¹ will then begin to emerge.²² This will also be a time of constitutional crisis when the United States Constitution will hang by a thread.²³ Despite this threat, a constitutional form of government will survive into the millennium.²⁴ The laws of the government of Zion²⁵ will add to, rather than eliminate, the holy and godly protections of that inspired document.²⁶ Ultimately, all forms of earthly government will be replaced by a single theocracy that Christ will rule personally.²⁷ The full realization of Christ's millennial government will occur at and after the Second Coming.²⁸ Until then, the Church of Jesus Christ of Latter-day Saints and her members will remain subject to the laws of earthly governments.²⁹