Some same-sex marriage activists might wish to exclude certain moral and religious viewpoints from the same-sex marriage debate. Evidence shows, however, that religion and moral argumentation are often harnessed in support of same-sex marriage. Although support for the traditional understanding of marriage does not require belief in the religious teachings of any particular faith, the decision to recognize same-sex marriage in law involves inescapable moral considerations. Parties on both sides of the issue, therefore, should be free to bring their moral viewpoints to bear on the issues involved.