Religious denominations vary in both their approach to the roles that men and women play in familial contexts, as well as their approach to homosexuality. This research investigates whether gender attitudes, informed by religious tradition, predict a person's support for civil liberties extended to gays and lesbians. Using data from the 1996 and 2006 waves of the General Social Survey, structural equation models are employed to relate the concepts. Traditional gender role attitudes and support for homosexuals' civil liberties are found to negatively co-vary over time. Denominational differences in attitudes toward gender and support for homosexuals' civil liberties are evident in 1996 and generally conform to an exclusivist-inclusivist continuum, but in 2006, differences are noticeably absent, suggesting that there has been a decline in the explanatory power of denominational affiliation during this decade.