“St. Thomas explains that for a law to be just, it must conform to the demands of reason and have an effect which is both good and for the benefit of those for whom it is intended. A law can cease to bind without revocation on the part of the legislator when it is clearly harmful, impossible, or irrational. It would certainly constitute an abuse of authenticity for a pope to forbid the celebration of so hallowed, venerable and Catholic a rite as the Tridentine Mass. Should it be done, there is a sound case to justify the faithful in resisting him, based upon accepted norms within Catholic theology. (p. 25).”