The Logical Fallacy of The Way We Have Always Done It occurs when any new idea, concept, revelation, or any such thing is rejected because it is new. This is a variation of the appeal to tradition fallacy.
Examples of the Logical Fallacy of The Way We Have Always Done It
Businesses don't innovate because they have always done it the way that they are doing it.
Extrabiblical traditions in the Church cannot be conformed to the pattern in Scripture because that's the wasy we have always done it.