Jeffrey Nielsen, a professor at the Mormon church's Brigham Young University, has an editorial in today's Salt Lake Tribune in favor of gay marriage.
Among other things, he says:
I believe opposing gay marriage and seeking a constitutional amendment against it is immoral.
Truly, God would be unjust if He were the creator of a biological process that produced such uncommon, yet perfectly natural results, and then condemned the innocent person to a life of guilt, while denying him or her the ordinary privileges and fulfillment of the deep longing in all of us for family and a committed, loving relationship.
...virtuous moderation and loving kindness require us to exercise caution before making constitutionally binding discrimination against a whole class of people based only on fear and superstition. In fact, when we examine the statements opposing gay marriage, we find few reasonable arguments. It is not enough to claim that we should oppose gay marriage because historically it has never been recognized. This is the fallacy of appealing to tradition, which was also used to fight against civil rights and equal treatment of women.
Further, to say that gay marriage will destroy traditional marriage and the family without giving any reasons why is the fallacy of appealing to fear. Indeed, once you get past the emotion, it is quite an unfounded claim.
How could the union of two committed and loving people negatively affect my marriage? I believe that quite the contrary is true; namely, legalizing gay marriage reinforces the importance of committed relationships and would strengthen the institution of marriage.
Ultimately, any appeal to religious authority to create law is misplaced. Our Founding Fathers were inspired by their study of history to separate constitutional authority from religious belief, recognizing as they did the potential for tyranny in unchecked religious influence.
Read the entire article.