Thanks to David Huff for my new favorite sound bite term: argumentum ad antiquitatem which translates "appeal to tradition." (See definition and examples below!)
Appeal to tradition, also known as appeal to common practice or argumentum ad antiquitatem or false induction is a common logical fallacy in which someone proclaims his or her accuracy by noting that "this is how it's always been done." Essentially: "This is right because we've always done it this way."
An assumption behind this argument is that whatever reason led to the old methods of thinking is still valid today. If circumstances have changed, this may be a false assumption. Moreover, the "old" method may never have been proven correct. Also, the argument takes for granted that status quo is desired, which may or may not be correct.
"Our society has always ridden horses. It would be foolish to start driving cars." (rebuttal: we want to travel farther and horses are no longer adequate for traveling such great distances)
"Your invention is a bad idea because it has no historical precedent." (rebuttal: the fact that something has not been previously attempted does not guarantee it will ultimately fail)
"These rules were written 100 years ago and we have always followed them. Therefore, there is no need to change them." (rebuttal: the society in which the rules were written has changed, and thus those rules may no longer be applicable)
"Marriage has always been between one man and one woman, therefore same sex marriage is wrong."(rebuttal: society changes with time, therefore things that were not acceptable at one time may be acceptable today.)
Read the rest at Wikipedia and let's all pray that we are coming to the end of the argumentum ad nauseum that has for too long consumed the energy and attention of this church!