Both the Roman Catholic and Eastern Orthodox traditions lift marriage beyond the level of social contract or even covenant. They speak of it as something sacramental, an encounter with divine grace through the union of man and woman. In Catholic thought, when two baptized believers marry, their bond becomes one of the seven sacraments. It is not only a covenant but a sacred sign of Christ’s union with His Church, believed to strengthen the couple with grace for the lifelong path of fidelity. Catholic teaching ties the indissolubility of marriage directly to its sacramental character: what God has joined together in this rite is both holy and unbreakable, a grace-sustained union meant to endure until death.[1],[2],[3]
Eastern Orthodoxy frames the same reality in terms of “mystery.” Marriage, for the Orthodox, is not merely a legal arrangement or a private decision, but an act in which heaven and earth meet. The wedding liturgy is filled with imagery: crowns placed upon the heads of bride and groom, the prayers of the priest invoking the Holy Spirit, and the vision of the family as a “little church” where Christ Himself is present. The Orthodox perspective stresses not only the covenantal bond but the transfiguring power of grace within marriage. Some writers even suggest that this mystery endures into eternity, making marriage an icon of eschatological life.[4],[5]
These sacramental and mystical layers, while rich in symbolism, move beyond what Scripture itself teaches. The Bible certainly honors marriage as holy, established by God at creation and reaffirmed by Christ. It also celebrates marriage as a profound picture of the gospel, echoing Christ’s love for His church. But nowhere does Scripture place marriage alongside baptism or the Lord’s Supper as a divinely instituted channel of grace. By tying marriage’s holiness to sacrament or liturgy, Catholic and Orthodox theology risk obscuring the simple, universal truth that Genesis 2:24 gives: marriage is God’s creation ordinance for all humanity, not only for the baptized and not dependent on priestly rites.
At stake here is the difference between symbol and sacrament. While it’s true that marriage symbolizes Christ’s relationship with His people, Catholicism and Eastern Orthodoxy erroneously equate that symbol with a sacramental theology that changes the very nature of the union. Grace is not dispensed through ritual but through Christ Himself, received by faith. Marriage is holy not because the church elevates it to sacrament, but because God Himself designed it “from the beginning.” In the end, Catholic and Orthodox traditions rightly emphasize the sacredness and seriousness of marriage, but they overlay it with traditions of men that Scripture does not support, turning a creation gift into an ecclesiastical ordinance.
[1] International Theological Commission, Propositions on the Doctrine of Christian Marriage, approved in forma specifica, 1977, Vatican, accessed August 26, 2025, Propositions on the Doctrine of Christian Marriage, https://www.vatican.va/roman_curia/congregations/cfaith/cti_documents/rc_cti_1977_sacramento-matrimonio_en.html.
[2] International Theological Commission, The Reciprocity between Faith and Sacraments in the Sacramental Economy (Vatican City: International Theological Commission), March 3, 2020, accessed August 26, 2025, https://www.vatican.va/roman_curia/congregations/cfaith/cti_documents/rc_cti_20200303_reciprocita-fede-sacramenti_en.html
[3] Pope Francis, General Audience, St. Peter’s Square, Wednesday, April 2, 2014, in the catechetical series on the Sacraments (on Matrimony), accessed August 26, 2025, https://www.vatican.va/content/francesco/en/audiences/2014/documents/papa-francesco_20140402_udienza-generale.html
[4] George Konstantopoulos, “The Mysterion [Mystery (Sacrament)] of Marriage,” Daily Message, St. Andrew Greek Orthodox Church (South Bend, IN), April 30, 2018, accessed August 26, 2025, lines 4–9, The Mysterion [Mystery (Sacrament)] of Marriage (SaintAndrewGOC.org), https://saintandrewgoc.org/blog/2018/4/30/the-mysterion-mystery-sacrament-of-marriage
[5] Italo‑Greek Orthodox Archdiocese of the Americas and Canada, “The Sacrament of Marriage,” Our Faith (webpage), accessed August 26, 2025, The Sacrament of Marriage, https://igoarchusa.org/thesacramentofmarriage