The “Big Book” fallacy is the notion that anything that is said in a big book, especially a multivolume series of big books, must be, at a minimum, factually correct, and at a maximum, correct in its judgment. This is fallacious, because error is error, regardless of its domicile. Peer-reviewed error may be less common than non-peer-reviewed error, but it still exists. No editor checks the factual accuracy of every sentence he edits, and therefore, even in big books, multi-volume big books, and/or multi-volume big books with good reputations, error still exists, and we should not repeat the error without either citing the source or checking the source.See the two examples he cites--the first from Kittel's TDNT, the second from Keil's commentary on Joel 2:28.
HT: Upper Register