Project Middle Ground
LGBTQ+ Rights

What do constitutional principles say about marriage as a civil right — and how does civil marriage differ from religious marriage?

Bottom line

Civil marriage and religious marriage are different things. The Constitution protects both the right of same-sex couples to civil marriage and the right of religious institutions to define marriage within their own traditions. Over 1,100 federal rights attach to civil marriage — denying them requires a constitutional justification, not just a theological one.

Religious perspectives

This is one of the clearest cases where religious teaching and civil law occupy different domains — and many traditions acknowledge this distinction:

Christianity: Views vary widely. Some denominations (Episcopal, Presbyterian USA, United Church of Christ, Evangelical Lutheran) perform and celebrate same-sex marriages. Others (Southern Baptist, Catholic, Orthodox) oppose them on doctrinal grounds. But many Christians on both sides recognize that civil marriage — a legal contract granting tax, inheritance, hospital visitation, and custody rights — is distinct from a sacramental rite.

Judaism: Reform, Reconstructionist, and Conservative Judaism all affirm same-sex marriage. Orthodox Judaism does not. Yet Jewish tradition has a long history of distinguishing between religious law (halakha) and civil law (dina d'malkhuta dina — "the law of the land is the law").

Islam: Traditional Islamic teaching defines marriage as between a man and a woman. However, some Muslim scholars and organizations distinguish between what their faith teaches within the community and what civil law should impose on all citizens in a pluralistic society.

The key distinction: No religious institution is required to perform marriages it opposes. But civil marriage confers over 1,100 federal rights and protections. The question is not whether any religion must change its theology — it's whether the government can deny civil rights to some citizens based on the theology of others.

Constitutional & legal framework

The Supreme Court addressed this directly in one of its most significant modern rulings:

Obergefell v. Hodges (2015): The Court held that same-sex couples have a fundamental right to marry under the 14th Amendment's Due Process and Equal Protection Clauses. Justice Kennedy wrote: "The right to marry is a fundamental right inherent in the liberty of the person... couples of the same-sex may not be deprived of that right and that liberty."

Respect for Marriage Act (2022): Signed with bipartisan support, this federal law requires all states to recognize valid marriages regardless of sex, race, or ethnicity — providing a statutory backstop to the constitutional ruling.

Loving v. Virginia (1967): The precedent that Obergefell built upon — striking down interracial marriage bans. Chief Justice Warren wrote: "The freedom to marry has long been recognized as one of the vital personal rights essential to the orderly pursuit of happiness." Religious objections to interracial marriage were once common, too.

First Amendment protections: Churches, mosques, synagogues, and other religious institutions retain full authority to define marriage within their own traditions. Civil marriage and religious marriage are legally separate — the government issues marriage licenses, not sacraments.

See: Obergefell v. Hodges →

Sources cited:ConstitutionSupreme Court