 Often “mystery” is used in a merely honorific sense, meaning a great and important truth or thing relating to religion. In this vein it’s often said that the doctrine of the Trinity is a mystery to be adored, rather than a problem to be solved. In the Bible a “mystery” (Greek: musterion) is simply a truth or thing which is or has been somehow hidden (i.e., rendered unknowable) by God (Anonymous 1691; Toulmin 1791b). In this sense a “revealed mystery” is a contradiction in terms (Whitby 1841, 101–9). While Paul seems to mainly use “mystery” for what used to be hidden but is now known (Tuggy 2003a, 175), it has been argued that Paul assumes that what has been revealed will continue to be in some sense “mysterious” (Boyer 2007, 98–101).