This phrase, "holy order of matrimony," has come up many times in my study of the covenant of marriage. A simple definition of matrimony is "the state or ceremony of being married; marriage."
The Catholic Church Code of Canon Law (Canon 1055) says, "The matrimonial covenant, by which a man and a woman establish between themselves a partnership of the whole of life, is by its nature ordered toward the good of the spouses and the procreation and education of offspring." The root matr- comes from the Latin word mater which means "mother," and the suffix -mony refers to "a state of being, a function, or a role." The full word matrimony describes the state that makes a woman a mother, highlighting the central role of reproduction and childbearing in marriage. (See https://www.thoughtco.com/what-is-matrimony-542851)
In the LDS Church, the covenant of marriage includes more that just the relationship between the man and the woman. The focal point of marriage is the Atonement of Jesus Christ, as illustrated in the story of Adam and Eve. Elder Bruce C. Hafen, a former member of the Quorum of the 70, explained it this way: "The temple’s primal story is quite consciously the story of a married couple who help one another face continuous mortal opposition. For only in confronting that sometimes-miserable opposition could they learn to comprehend true joy. . . . Because of the Atonement, we can learn from our experiences without being condemned by them. And receiving the Atonement, as Adam and Eve did, is not just a doctrine about erasing black marks; it is the core doctrine that allows human development. Thus, Christ’s sacrifice didn’t just return them to an Eden of innocence. That would be a story with no plot and no character growth. Rather, they left the garden holding on to each other and moving forward, together, into the world in which we now live."
So this holy order of matrimony includes a covenant with our Savior Jesus Christ so that we can utilize his atonement to magnify the husband-wife relationship and receive the strength of the Lord. The beauty of the temple of the Lord is that it reorients us to the truth, or "the natural order of the universe, including the natural order of marriage. Like the ancient mariner, we look to the heavens to get our bearings--and we do that through the temple."
When we enter into the marriage covenant, we are also promised that we will receive the same blessings promised to the prophet Abraham. Elder Bruce R. McConkie stated, "This is the occasion when the promises of eternal increase are made, and it is then specified that those who keep the covenants made there shall be inheritors of all the blessings of Abraham, Isaac, and Jacob." (A New Witness for the Articles of Faith (1985), 508–509.)
I initially became curious about the "holy order of matrimony" because the same promise is given to those that are dead when their ordinances are performed in modern LDS temples. Those who did not have a chance to be sealed in the covenant of marriage in this life can be sealed vicariously in temples. Elder McConkie said, "The promises are the provisions of the Abrahamic covenant whereby the seed of the ancient patriarchs are entitled to receive the priesthood, the gospel, and eternal life (including celestial marriage). We are the children, and after we receive these blessings for ourselves, our attention turns almost by instinct to the well-being of our ancestors who died without a knowledge of the gospel. We are Abraham's seed, and they were Abraham's seed . . . through Jacob, and through the house of Israel. It thus becomes our privilege, on the basis of salvation for the dead, to search out our ancestors--to whom the same blessings have been promised as have come to us--and to make these blessings available to them through the vicarious ordinances of the house of the Lord." (A New Witness, 508–509.)
To summarize, in the beautiful words of Elder McConkie, "As the crowning cause for wonderment, that God who is no respecter of persons has given a like promise [to that of Abraham and Joseph Smith] to every [member] in the kingdom who has gone to the holy temple and entered into the blessed order of matrimony there performed. Every person married in the temple for time and for all eternity has sealed upon him, conditioned upon his faithfulness, all of the blessings of the ancient patriarchs, including the crowning promise and assurance of eternal increase, which means, literally, a posterity as numerous as the dust particles of the earth.” (The Millennial Messiah (1982), 264.)
The ordinances we receive in the temples of the Lord provide purpose and perspective for all the other gospel principles and ordinances. The sealing power and holy order of matrimony connect us with all of the Saints (past, present, and future), and ensure the continuation of all the blessings of Abraham, Isaac, and Jacob.
