The Grey Man said:
in fact, the Church traditionally treats those who claim to have received a message directly from God but fail to produce miracles or gain the approval of a competent authority as impostors until proven otherwise.
This places a great deal of trust upon the relevant authorities.Hope yours are the "correct" authorities, as there are many who lay monopolistic claim to knowledge of the divine.
This is why the Church demands miracles
or the approval of a competent authority as proof of the authenticity of an alleged divine revelation: the credibility of the authority is itself at least partially based on miracles—not miracles worked privately or in secret, but the public miracles worked in full sight of all by the founder of the Church, Jesus Christ, who conferred his authority to the Apostles and the Apostles to their successors, who are today the ordinary judges of the authenticity of extraordinary events, including both private miracles and private revelations. That the miracles of Jesus actually happened, no one ever had the temerity to deny before modern rationalistic skeptic critics. Even those who wanted to see the new Christian religion snuffed out in the crib, the Jews and Pagans, did not deny the miracles but ascribed them to sorcery. Why? Because it would have been ridiculous to deny events for which there were hundreds of living witnesses, just as it would be ridiculous to deny 9/11 today.
If the miracles of Jesus actually happened and were witnessed by many people, why did many of these people not believe that he was the Christ and the Son of the living God (cf. Mathew 16:16)? To answer this question it is necessary to complement the Vatican Council definition I quoted earlier with the observation that, if it is true that, to make an act of theological faith, "we must examine the objective evidence", it is no less true that mere reasoning based on evidence cannot, of itself, produce an act of divine faith.
Vatican I said:
If anyone says that the assent to christian faith is not free, but is necessarily produced by arguments of human reason; or that the grace of God is necessary only for living faith which works by charity: let him be anathema.
As Fr. Hugh Pope explains in his no less excellent Catholic Encyclopedia article on "Faith",
In the Old Testament, the Hebrew word means essentially steadfastness. As signifying man's attitude towards God it means trustfulness or fiducia
www.newadvent.org
Fr. Pope said:
Divine faith is supernatural both in the principle which elicits the acts and in the objects or truths upon which it falls. The principle which elicits assent to a truth which is beyond the grasp of the human mind must be that same mind illumined by a light superior to the light of reason, viz. the light of faith, and since, even with this light of faith, the intellect remains human, and the truth to be believed remains still obscure, the final assent of the intellect must come from the will assisted by Divine grace, as seen above. But both this Divine light and this Divine grace are pure gifts of God, and are consequently only bestowed at His good pleasure. It is here that the heroism of faith comes in; our reason will lead us to the door of faith but there it leaves us; and God asks of us that earnest wish to believe for the sake of the reward — "I am thy reward exceeding great" — which will allow us to repress the misgivings of the intellect and say, "I believe, Lord, help Thou my unbelief." As St. Augustine expresses it, "Ubi defecit ratio, ibi est fidei aedificatio" (Sermo ccxlvii, P.L., V, 1157 — "Where reason fails there faith builds up").
To make an act of divine faith is to assent to a proposition that God has revealed because God has revealed it—and assent is an act of the will no less than of the intellect. To know "that God exists, that He reveals such and such a proposition, and that His teaching is worthy of assent" is therefore necessary to make an act of faith, but not sufficient. It is necessary also to, "with the grace of God inspiring and assisting us," freely accept the proposition on the strength of our trust in God's Testimony even though we do not "perceive its intrinsic truth by the natural light of reason" and, crucially, even though it convicts us of sin. It is this voluntary submission to divine Revelation that makes acts of faith meritorious. If the assent of faith were not free, but could be "necessarily produced by arguments of human reason," then faith would not be a virtue, let alone "the beginning of human salvation".
The answer, then, to the question of why many of the witnesses of the miracles of Jesus did not believe in him, is that, even if they were perfectly capable of understanding the significance of what they saw, they could not accept it because it accused them in their iniquity.
"And this is the judgment: because the light is come into the world, and men loved darkness rather than the light: for their works were evil. For every one that doth evil hateth the light, and cometh not to the light, that his works may not be reproved" (John 3:19-20; cf. Wisdom 2:12-20).
St. John expresses this truth most clearly when he recounts the end of Jesus's public ministry, when the accusing Light was about to be eclipsed by "the power of darkness" (Luke 22:53).
"Whilst you have the light, believe in the light, that you may be the children of light. These things Jesus spoke; and he went away, and hid himself from them. And whereas he had done so many miracles before them, they believed not in him: That the saying of Isaias the prophet might be fulfilled, which he said: Lord, who hath believed our hearing? and to whom hath the arm of the Lord been revealed? Therefore they could not believe, because Isaias said again: He hath blinded their eyes, and hardened their heart, that they should not see with their eyes, nor understand with their heart, and be converted, and I should heal them" (John 12:36-40; cf. Isaias 6:10, 53:1).
"They could not believe," St. Augustine explains, "because they would not" (tract. 53. in Joan.). Therefore miracles, even extremely numerous and impressive miracles, do not alone produce faith. On one hand, this means that it is possible to witness miracles without having faith; fortunately, it is also possible to make an act of theological faith without witnessing miracles, just as it is possible, and even necessary, to accept, on the strength of human testimony, historical facts, including the historical facts concerning Jesus of Nazareth.