Rick Warren: The issue to me, I'm not opposed to that as much as I'm opposed to redefinition of a 5,000 year definition of marriage. I'm opposed to having a brother and sister being together and calling that marriage. I'm opposed to an older guy marrying a child and calling that marriage. I'm opposed to one guy having multiple wives and calling that marriage.
Steven Waldman: Do you think, though, that they are equivalent to having gays getting married?
Rick Warren: Oh, I do.

** Response to the question: "What about partnership benefits in terms of insurance or hospital visitation?", as quoted in "Rick Warren's Controversial Comments on Gay Marriage" by Steven Waldman at Beliefnet (17 December 2008)