With apologies to RSC, who was much more thorough here, I believe I can name that tune in only 162 words. Here’s a “proof” that confessional Californians should vote for Prop 8:
From WCF 24, “On Marriage and Divorce”:
1: Marriage is to be between one man and one woman; neither is it lawful for any man to have more than one wife, nor for any woman to have more than one husband, at the same time.
4: Marriage ought not to be within the degrees of consanguinity or affinity forbidden by the Word. Nor can such incestuous marriages ever be made lawful by any law of man or consent of parties, so as those persons may live together as man and wife.
Yes, paragraph 1 is addressing polygamy, and yes paragraph 4 is addressing incest; but it seems to me to be no stretch at all to assume that the divines would also agree that a homosexual marriage can never be made lawful by any law of man.