INTERCHURCH RELATIONSHIPS/MARRIAGE IN CHRISTIANITY

PART OF SERIES, "ECUMENISM: ADDRESSING ISSUES TOWARDS POSITIVE DIALOGUE"

Author: Ken Klark L. Flores

Introduction

You have a relationship with a partner who have different denomination? For example, me, as a Catholic man, you enter a relationship with an Evangelical woman, but your conservative parents retraining your relationship because both of you have different faiths, so what would you do?

Behind "Interfaith/Interchurch Marriages/Relationships"

An interfaith relationship or marriage is a union between people of different religious backgrounds, which can present unique challenges and rewards. Key issues often include deciding on a religion for children, navigating family pressure, and finding ways to respect and integrate different traditions and beliefs. Success in these relationships depends on open communication, mutual respect, and intentional planning to navigate differences and build a shared future (Interfaith Marriages - Navigating and Overcoming Common Problems, n.d.; (Szekely, 2025).

An interchurch relationship or marriage is a union between two baptized Christians from different Christian denominations. These marriages, sometimes called mixed marriages, require navigating differences in beliefs and traditions and can be a way for couples to live out their faith and contribute to Christian unity. They present unique challenges and opportunities for growth, as couples learn to balance their individual heritages with a shared "domestic church" (One in Baptism and Marriage: Interchurch Families as a Laboratory of Unity | One Body | Salt + Light Media, 2022; Webmaster, 2017; Heffern, 2017).

Challenges

A significant challenge can be the inability to share the Eucharist (Communion) together on a regular basis, as full eucharistic communion usually requires full ecclesial communion, which is not yet a reality between many denominations. Couples may sometimes face lack of understanding or initial opposition from family members or clergy who are accustomed to single-denomination marriages. 

At the same time, deciding on the children's religious education and which church they will primarily attend can require careful discussion and a shared approach.

Discouragements

Some denominations like the Iglesia ni Cristo (INC) and Seventh-day Adventists discourage interchurch/interfaith marriages because of concerns about one partner potentially undermining the other's faith, leading to spiritual conflict and challenges in raising children according to the denomination's beliefs. For INC, it's often tied to the belief that their doctrine is the one true faith, while Adventists recommend marrying within the "household of faith" to prevent spiritual erosion, citing biblical passages about not being unequally yoked with unbelievers (Friend, 2024).

The Jehovah's Witnesses strongly discourages members from marrying non-Witnesses, recommending they only marry "in the Lord". While it is not a "disfellowshipping" (excommunication) offense to marry outside the faith, a member who does so may lose certain "privileges" or positions of responsibility within the congregation. The reasoning is that shared beliefs and goals are essential for a successful marriage and serving God effectively (Are Jehovah’s Witnesses allowed to marry outside the faith?, 2011)

The Church encourages its members to marry within the faith, specifically within a temple, as they believe it is essential for an eternal family and salvation. While civil marriages to non-members are recognized as legal, they are not seen as having the same spiritual standing or eternal blessings as a temple marriage.

Canonical law has historically strongly discouraged marriage between an Orthodox Christian and someone from another faith or with no religious affiliation. While some leniency (known as economia or pastoral care) may be applied in certain modern contexts, such marriages typically cannot receive the sacrament of marriage within the church, and the non-Orthodox partner may be required to agree to raise children within the Orthodox faith for the marriage to be recognized as valid by the church.

Certain conservative evangelical and holiness Christian groups, explicitly discourage or forbid marriage to "unconverted persons". They often use the "unequally yoked" passage from 2 Corinthians 6:14 as a strict ban, warning that such marriages can have negative spiritual consequences.

The degree of discouragement and the resulting consequences for members can vary widely, from social disapproval and loss of church privileges to formal expulsion, as in the case of the INC. 

Finding Successful type of relationship

Successful interchurch (or interfaith) marriages are built on open and honest communication, mutual respect and compromise, focus on shared values, embrace each other's traditions, plan for children together, educate yourselves, celebrate and create new traditions, and consider joint religious activities. Key factors include openly discussing differences, making conscious decisions about raising children, celebrating each other's traditions, and focusing on shared values rather than differences. Flexibility and a willingness to support each other's happiness are crucial for navigating potential conflicts and strengthening the relationship (Strengthening Interfaith Marriage, 2020).

Ultimately, a successful interchurch marriage thrives when both partners are committed to one another, show empathy and support, and have a shared vision for the future. By working together, couples can create a happy, loving, and unified family life that honors both of their religious backgrounds. (Interfaith Marriages - Navigating and Overcoming Common Problems, n.d.)

Reference

Interfaith Marriages - Navigating and Overcoming Common Problems. (n.d.). Find the Right Psychologist for You | New Vision Psychology. https://newvisionpsychology.com.au/couples-counselling-sydney/interfaith-marriages/

Szekely, G. (2025, August 8). Interfaith Relationships. The Couples Center. https://www.thecouplescenter.org/interfaith-relationships/

One in baptism and marriage: Interchurch families as a laboratory of unity | One Body | Salt + Light Media. (2022). Slmedia.org. https://slmedia.org/blog/one-in-baptism-and-marriage-interchurch-families-as-a-laboratory-of-unity-one-body

Webmaster. (2017). INTERCHURCH MARRIAGES: towards a spirituality. Interchurchfamilies.org. https://www.interchurchfamilies.org/interchurch-marriages-towards-a-spirituality

Heffern, R. (2017). Ecumenism in interchurch marriage. National Catholic Reporter. https://www.ncronline.org/news/ecumenism-interchurch-marriage

‌Friend, Y. A. (2024, July 10). Can a Seventh-day Adventist Marry a Non-Adventist? AskAnAdventistFriend.com. https://www.askanadventistfriend.com/adventist-culture/can-a-seventh-day-adventist-marry-a-non-adventist/

Are Jehovah’s Witnesses allowed to marry outside the faith?  (2011, October 17). Christianity Stack Exchange. https://christianity.stackexchange.com/questions/4181/are-jehovahs-witnesses-allowed-to-marry-outside-the-faith

Strengthening Interfaith Marriage. (2020, January 16). Forever Families. https://foreverfamilies.byu.edu/strengthening-interfaith-marriage

Interfaith Marriages - Navigating and Overcoming Common Problems. (n.d.). Find the Right Psychologist for You | New Vision Psychology. https://newvisionpsychology.com.au/couples-counselling-sydney/interfaith-marriages/

PDF Reference

https://nicolaskazarian.com/wp-content/uploads/2017/11/nicolas-kazarian-christian-orthodoxy-and-interfaith-marriage.pdf

Additional Disclaimer:

‌It is not intended as a substitute for professional religious, legal, or pastoral counseling. Readers should consult with their respective faith leaders or qualified counselors for guidance tailored to their personal circumstances.

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