Study: Biblical definition of marriage high among churchgoers, definition of family less so

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Washington, D.C. Newsroom, Oct 14, 2025 / 13:38 pm (CNA).

A recent study found that among adults who attend Christian worship at least monthly, 68% agreed marriage is between one man and one woman, but only 46% defined “family” in corresponding terms of a husband and wife, their children, and relatives.

Family Research Council in partnership with the Cultural Research Center at Arizona Christian University released findings this week from a new national survey of 1,003 churchgoing adults. The survey, “Social Issues and Worldview,” was conducted in July to build off a similar 2023 study. The research identified beliefs of the faithful in regard to social topics and family life.

Of the 9 in 10 respondents identifying as Christian, 39% were Catholic, 20% mainline Protestant, 18% evangelical, 9% independent or nondenominational Christian, and 4% Pentecostal.

Among the respondents, about 22% claimed the definition of family changes over time and across cultures. About 20% said family is any group of people who care for one another, 6% said family is any group of people who live together, and 6% said they did not know how to describe family.

No demographic or Christian group was found to have a clear majority in support of the biblical definition of family, but the highest support came from theologically defined born-again Christians (59%) and Pentecostal churchgoers (56%). 

The majority of respondents did agree on a number of other family-related topics. Of churchgoing adults, 70% said it is important for society to facilitate families with a father, mother, and children living together and 68% said they believe marriage is only between a man and a woman.

Christian stances on social issues and need for discipleship 

The report found churchgoers are open to more discipleship and teaching on a number of current social issues. A large majority reported that additional worldview training is desirable in areas regarding religious freedom (88%), social and political responsibility (76%), and abortion and the value of life (60%).

The research revealed more specific Christian views on pro-life topics including abortion and euthanasia. About 25% of churchgoing respondents said they would prefer their church to preach or teach about abortion at worship services more often, while 18% said they would prefer teachings on the topic less often. 

Those interested in increasing preaching on the topic mostly attend either evangelical (31%) or Pentecostal churches (31%), while adults who align with independent and nondenominational churches were the least interested in increasing the number of sermons on abortion (19%). Interest among Catholics in increasing the frequency fell from 41% to 29% since 2023.

Respondents were asked their beliefs in regard to the statement: “Euthanasia is morally wrong.” Less than half of churchgoers (43%) said they agreed, another 23% said they disagreed, and 35% said they were unsure and did not know whether euthanasia was right or wrong.

Overwhelming majorities agreed that people should be able to practice “peaceful, genuinely held religious beliefs without being punished by the government, even if those beliefs are not culturally popular” (83%), that “every person is made in the likeness of God” (84%), and that “every human being has undeniable value and dignity” (83%).