Prophetic words from the late Avery Cardinal Dulles in 2004:
If, in fact, the previous teaching had been discarded (on the death penalty), doubt would be cast on the current teaching as well. It too would have to be seen as reversible, and in that case, as having no firm hold on people’s assent. The new doctrine, based on a recent insight, would be in competition with a magisterial teaching that has endured for two millennia — or even more, if one wishes to count the biblical testimonies. Would not some Catholics be justified in adhering to the earlier teaching on the ground that it has more solid warrant than the new? The faithful would be confronted with the dilemma of having to dissent either from past or from present magisterial teaching.