CREDENTITY. The credibility of something that is so persuasive that it morally obliges a person to believe. In theology, the credentity of Christian revelation is the convincing evidence for its truth, which imposes on a person the duty to accept it, corresponding to the decision "I must believe." It is partly the result of sincere inquiry and of proper moral dispositions, but mainly the result of God's enlightening grace. (Etym. Latin credentia, belief, trust, hence a table holding food for tasting in order to detect poison; from credere, to believe.)