From the Orthodox Study Bible:

The Bible and human history begin and end with weddings. Adam and Eve come together in marital union in Paradise, before the Fall, revealing marriage as a part of God’s eternal purpose for humanity in the midst of creation (Gen. 2:22-25). History closes with the marriage of the Bride to the Lamb (Rev. 19:7-9), earthly marriage being fulfilled in the heavenly, showing the eternal nature of the sacrament.

Between these bookend events of history are the accounts of numerous other unions of man and wife. In the centuries-old Christian wedding ceremony used to Abraham and Sarah (Gen. 11:29-23:20); Isaac and Rebecca (Gen. 24); Joachim and Anna, the parents of the Virgin Mary; and Zacharias and Elizabeth (Luke 1:5-58).

The marriage most prominently featured in the wedding ceremony, however, is the one at Cana of Galilee, described in the Gospel passage read at every Orthodox wedding (John 2:1-11). In attending this wedding and performing His first miracle there, Jesus Christ, the Son of God, forever sanctifies marriage. As with all the Christian sacraments, marriage is sacramental because it is blessed by God.

Parenthetically, it is at this wedding at Cana that Mary first intercedes with Christ on behalf of others: “They have no wine” (John 2:3). Then she calls all humanity to obey Him: “Whatever He says to you, do it” (John 2:5).

In modern society, as well as in Christendom, a recurring debate is going on. It deals with the tension between equality of the partners in marriage and office or order in marriage. Often, this tension has turned into a polarity between men and women, and sometimes even breeds hostility. There are two elements in the Orthodox service of marriage which serve to heal such tension, while making clear the teaching of the Church on the twin themes of equality and order concerning husband and wife.

As to equality, during the ceremony crowns are placed on the heads of the bride and groom. This act is symbolic of their citizenship in the Kingdom of God, where “there is neither male nor female” (Gal. 3:28) and of their dying to each other (the crown is often a symbol of martyrdom; see Rev. 2:10). The words of St. Paul are clear on marital equality: “The wife does not have authority over her own body, but the husband does. And likewise also the husband does not have authority over his own body, but the wife does” (1 Cor. 7:4). Husband and wife belong to each other as martyrs, they belong to God as royalty, and they are called to treat each other accordingly.

But within marital equality there is also order. The epistle passage read at the Sacrament of Marriage is Ephesians 5:20-33, the exhortation to husbands and wives which begins with a call to submit to each other (Eph. 5:21). The husband is to serve God as head of his wife, as Christ is head of the Church (Eph. 5:23). The wife is to be subject to her husband as the Church is subject to Christ (Eph. 5:24). There is nothing here to suggest that the wife is oppressed in marriage, anymore than one would call the Church oppressed in relationship to Christ. He who calls us “brethren” (Heb. 2:11) and “friends” (John 15:15) exhorts the husband to love his wife, to nourish and cherish her as He Himself does the Church (Eph. 5:28, 29).

Thus, marriage is a sacrament-holy, blessed, and everlasting in the sight of God and His Church. Within the bonds of marriage, husband and wife experience a union with one another in love, and hopefully the fruit of children and one day the joy of grandchildren. And within the bonds of marriage there is both a fullness of equality between husband and wife, and a clarity of order with the husband as the icon of Christ, the wife as the icon of the Church.