Let’s assume for the sake of argument that the Roman Catholic claims of papal infallibility and the magisterial authority of the church are correct. In other words, when the pope as pope (and not as private individual) speaks an absolute word or when the church leadership as a whole make such a decided proclamation, they are assured of infallibility; and when they teach without such pronouncements, their general teaching is still binding upon consciences. Would such a situation negate the biblical principle of testing new revelation in light of prior revelation? Well, if there is a timeless biblical principle of testing new revelation in light of prior revelation, of course, it can’t be negated—ever. So how might such a principle be worked out in a world where an institution may still speak for God?