Three plaintiffs have been added to a faith-based challenge to North Carolina's ban on gay marriage.

The Central Conference of American Rabbis (CCAR) and the Alliance of Baptists, as well as clergy from All Souls Episcopal Cathedral in Asheville, have joined the lawsuit.

The Cleveland, Ohio-based United Church of Christ (UCC) filed the federal lawsuit in March.

The plaintiffs, which also include several gay and lesbian couples who wish to marry, argue that North Carolina's 2012 voter-approved constitutional amendment limiting marriage to heterosexual couples violates the First Amendment of the U.S. Constitution. It is the first of the nearly 6 dozen marriage equality cases filed nationwide to bring First Amendment religious freedom claims.

“A religious majority is passing and/or sustaining marriage laws that suit their religious beliefs, thus infringing on the free and equal access to marriage in the public square for those in the religious minority on this issue,” Alliance of Baptists President Michael Castle said in a statement.

The ban “precludes rabbis from participating in one of the fundamental aspects of our Jewish religious traditions with respect to a specific segment of their congregations and communities,” CCAR Chief Executive Rabbi Steven Fox said.

“Depriving rabbis of the freedom to conduct same-sex marriage ceremonies in North Carolina stigmatizes our religious beliefs and relegates many of our congregants and community members to second-class status,” he added.