Revelation, Visions and Miracles as Proof of God
What Is Revelation?
Revelation is the means by which God makes himself known. Catholics believe God has revealed himself progressively throughout history — through the natural world, through the prophets and scriptures of the Old Testament, and most completely through Jesus Christ. The letter to the Hebrews captures this: “In the past God spoke to our ancestors through the prophets at many times and in various ways, but in these last days he has spoken to us by his Son, whom he appointed heir of all things” (Hebrews 1:1–4). For Catholics, Jesus is not just one revelation among many — he is the fullness of revelation, the definitive Word of God.
This teaching shapes how Catholics read the whole Bible. The Old Testament points forward to Christ; the New Testament shows Christ as the fulfilment of everything the prophets promised. For a Catholic student today, this means that every act of worship, every scripture reading, and every sacrament is understood as an encounter with the God who has already fully revealed himself in Jesus.
Hebrews 1:1–4 teaches that God spoke through the prophets in many ways, but in “these last days” has spoken through his Son. Catholics use this verse to argue that Jesus is the culmination of divine revelation — making Christianity the fullest expression of God’s self-disclosure to humanity.
Visions as Proof of God
Visions have played a significant role in the Catholic tradition as evidence that God is real and communicates with human beings. The Bible records visions that shaped key figures in salvation history. In Genesis 15, God appears to Abraham in a vision, promising him descendants as numerous as the stars — the covenant that defines the whole people of Israel. In Matthew 17:1–13, Jesus is transfigured before Peter, James and John on a high mountain: his face shines like the sun, his clothes become dazzling white, and Moses and Elijah appear alongside him. The disciples hear God’s voice from a cloud: “This is my Son, whom I love; with him I am well pleased. Listen to him!” This vision of the Transfiguration confirmed the disciples’ faith in Jesus as the Son of God.
Beyond scripture, non-biblical visions have also shaped Catholic faith. The most studied is that of Joan of Arc, who reported visions of St Michael, St Catherine and St Margaret from around 1425, instructing her to support the French King Charles VII. The Catholic Church canonised Joan in 1920, recognising her life and reported visions as holy. For Catholics, such approved visions are not the basis of new doctrine but can deepen personal faith and confirm existing beliefs.
Atheists and Humanists argue that visions provide no proof that God exists. They point to natural explanations: visions may be hallucinations caused by hunger, illness, psychological distress, or brain activity during sleep. The Humanist argument is that a vision is an internal, subjective experience — it cannot be verified by anyone else, and the content of visions consistently reflects the cultural expectations of the visionary (a medieval French girl sees Catholic saints; a first-century Jew sees angels). Richard Dawkins and other atheist writers argue that the brain is capable of generating extraordinarily vivid experiences that feel external and real but are not. Catholics respond that the consistency, moral transformation, and in some cases miraculous healings associated with visions cannot be explained away so easily, and that subjective experience is still genuine data about reality.
Miracles as Proof of God
A miracle is an event that seems to go beyond natural explanation and points to the direct action of God. Catholics believe miracles demonstrate that God is active in the world and confirm the truth of the faith. The Gospel of John records an example: in John 4:43–54, Jesus heals a royal official’s son who is near death, doing so at a distance without being physically present. When the man checks the timing, he finds his son began to recover at the exact moment Jesus spoke. This sign strengthened his household’s faith.
The most famous modern site of Catholic miracles is Lourdes, a town in southern France. Since 1858, when the Virgin Mary reportedly appeared to Bernadette Soubirous, millions of pilgrims have visited. The Lourdes Medical Bureau investigates claimed healings rigorously; the Catholic Church has officially recognised 72 cures as miraculous since 1858, meaning no scientific or medical explanation has been found. These are not accepted uncritically — each case is examined by doctors of all faiths and none before Church recognition.
Lourdes is the principal Catholic site of miraculous healing. The Virgin Mary reportedly appeared to Bernadette Soubirous in 1858. The Church has recognised 72 cures there as miracles since then. For Catholics, these unexplained healings are evidence that God acts directly in the world and that Catholic faith is true.
Atheist and Humanist arguments against miracles take several forms. First, they argue that modern science can explain events that earlier ages attributed to divine intervention — what once seemed miraculous is now understood as remission, psychosomatic healing, or misdiagnosis. Second, they argue that reports of miracles are unreliable and based on anecdote and wishful thinking rather than rigorous evidence. Third, philosophers like David Hume argued in the eighteenth century that the uniform experience of natural law gives us stronger grounds to doubt a miracle report than to accept it — it is always more likely that a witness is mistaken than that a law of nature was broken. Catholics respond that Hume’s argument assumes the outcome before examining the evidence, and that the verified Lourdes cases have withstood medical scrutiny. They also argue that even if science one day explains every healing, that need not rule out God as the cause working through natural processes.