Miracles in the Bible: Why John 20:30-31 Gives the Answer
Short answer: The miracles of the Bible are signs, not spectacle. John 20:30-31 says, "Therefore Jesus did many other signs in the presence of his disciples, which are not written in this book;" and then gives the purpose clause: the written signs exist so that readers may believe and have life. That single sentence governs how the whole miracle tradition should be read. Miracles in Scripture are never recorded as random wonders or as proof that God is impressive. They are selective, purposeful, and pointed toward faith in a person. John admits openly that he left most of them out. What he kept, he kept for a reason, and the reason is stated: belief that leads to life. Every study of biblical miracles should begin here.
What John 20:30-31 Actually Claims
The first thing to notice is how modest the claim is. John does not say Jesus did a handful of signs. He says Jesus did many other signs in the presence of his disciples, which are not written in this book. The Gospel is presented as a selection, not a complete record. That honesty matters, because it means the miracles we read about are representative, not exhaustive. John is telling us that the signs he chose were picked from a much larger pool. He had material to spare and chose what served his stated purpose. A writer who admits to leaving things out is a writer asking to be trusted about what he kept in.
The second thing to notice is the word John uses: signs. He does not call them wonders or displays of power, though he believes they are that too. A sign is something that points beyond itself. A sign on a road is not the destination; it directs you to it. So when John records Jesus healing a blind man or turning water into wine, the miracle is not the endpoint of the story. It is an arrow. The healing points to who Jesus is. The wine points to who Jesus is. If you stop at the miracle and admire it, you have stopped at the signpost and never taken the road. John keeps pulling readers past the event to the person.
Third, notice the purpose clause that follows in verse 31. The signs were written so that readers may believe that Jesus is the Christ, the Son of God, and that believing they may have life in his name. That is the stated goal, and it is twofold: belief, then life. The miracles are not written to satisfy curiosity about the supernatural. They are written to produce trust in a specific person and to lead readers into a specific gift. Any reading of biblical miracles that stops at amazement, or that turns them into a general argument for the supernatural, has missed John's own explanation of why he bothered to include them at all.
Fourth, the phrase in his name matters. The life John promises is not abstract vitality or a vague spiritual upgrade. It is life located in a person, received by trusting that person. This is why the miracles in John's Gospel cluster around identity questions. Who is this who commands the sea? Who is this who gives sight to a man born blind? Who is this who calls a dead man out of a tomb? Each sign presses the same question, and the answer John wants is not merely that miracles happen, but that this particular man is the Christ, the Son of God. The sign serves the confession, and the confession serves the life.
Signs in the Old Testament Point the Same Direction
The pattern is not unique to John. When Moses stretched out his hand over the sea, Exodus 14:21 says, "Moses stretched out his hand over the sea, and Yahweh caused the sea to go back by a strong east wind all night, and made the sea dry land, and the waters were divided." Notice who acts. Moses stretches out his hand, but Yahweh causes the sea to go back. The human gesture is real, but the power is God's. The miracle is not Moses' achievement; it is Yahweh's deliverance. And deliverance is the point. The sea splits so that a captive people walks free. The sign serves redemption, exactly as the signs of Jesus serve redemption in John.
Later in that same chapter, the Egyptians pursue into the sea and are thrown into confusion. The water returns and covers the chariots. Israel sees the great work Yahweh had done, and the people fear Yahweh and believe in him and in his servant Moses. That is the same sequence John describes: a sign produces fear of God and trust in his appointed servant. The Old Testament does not record miracles as natural curiosities. It records them as acts of God on behalf of his people, acts that reveal his character and call for a response. The sea is not a magic trick; it is a rescue, and the rescue tells Israel who their God is.
Elijah on Mount Carmel follows the same logic. The contest is not about entertainment; it is about a question the people have been dodging: how long will you waver between two opinions? Fire falls, the offering is consumed, and the people fall on their faces. The miracle settles an identity question. Who is the real God, Baal or Yahweh? The sign is public, dramatic, and unmistakably aimed at allegiance. It is also, like John's signs, recorded selectively. We are told what serves the purpose. Scripture is not a catalogue of every wonder God ever did. It is a purposeful selection of signs that reveal who God is and what he is doing.
So the Old Testament establishes a pattern the New Testament assumes. Miracles authenticate a messenger and reveal God's character. They serve redemption, not spectacle. They call for allegiance, not merely amazement. When we arrive at the Gospels, we should read Jesus' signs the way Israelites read the sea and the fire: as acts that reveal who God is and summon a decision. John is not inventing a new category. He is naming, in one clear sentence, what the whole Bible has been doing with miracles from the beginning. The sign exists for the sake of the thing it signifies.
Why the Bible Does Not Record Every Miracle
John's admission that many signs are unwritten should shape our expectations. Some readers wish the Gospels contained more miracle accounts, as if the record were thin. John says the opposite: the record is a deliberate selection from abundance. He is not scraping together what little he has. He is choosing. That means our question should not be why there are so few miracles in the text, but why these particular ones were chosen. The answer, again, is the purpose clause. These signs were written so that readers may believe and have life. The selection is governed by the goal, and the goal is pastoral, not encyclopedic.
This also guards us against a common mistake: treating the Bible as a book of wonders to be mined for excitement. If we approach the miracle stories looking mainly for the spectacular, we will read past their point. The Bible is not embarrassed by the supernatural, but it is not obsessed with it either. Miracles appear where they serve the story of redemption, and often they recede into the background for long stretches. Whole books contain no recorded miracle at all. A book that records some signs and omits many more is telling us that the signs are servants of a message, not the message itself.
There is a practical benefit here. Because the recorded signs are selective, they are also memorable and pointed. We are not overwhelmed by volume. We can study each one and ask what it reveals about Jesus. Water into wine reveals his glory and the abundance of the messianic age. The healing of the official's son reveals the power of his word. The feeding of the five thousand reveals him as the bread of life. Each sign carries a message, and because John chose them, we can trust that each one earns its place. Selection is a gift to the reader, not a loss.
This should also make us honest about what we do not know. John says there were many other signs. He does not tell us what they were, and we should not invent them. Faithful teaching resists the temptation to fill gaps with speculation. We work with what is written, and we trust that what is written is sufficient for the purpose stated. The sufficiency is not in the number of miracles but in their aim. If the aim is reached, nothing essential is missing. John's confidence is not in the completeness of his record but in the adequacy of his selection for producing faith and life.
Miracles as Confirmation of the Message
The New Testament repeatedly links miracles to the proclamation of the gospel. In Acts, Peter says that Jesus was a man approved by God by mighty works and wonders and signs which God did by him. The miracles are God's public attestation of his Son. They are not detached from the message; they accompany it and confirm it. The same pattern appears in Hebrews, where the great salvation is said to have been confirmed by those who heard, with God bearing witness by signs and wonders and various miracles and gifts of the Holy Spirit. The sign authenticates the word, and the word interprets the sign.
This two-way relationship is important. A miracle without a message is ambiguous; people can be amazed and still miss the point. A message without a miracle is a claim with nothing to back it, which is exactly the objection raised against it. God joins the two. He speaks, and he acts, and the action confirms the speech. That is why the apostles appeal to miracles they and their hearers personally witnessed. The signs were not private religious experiences; they were public events that could be pointed to. Peter says, as you yourselves know. The miracles were part of the public record, and the public record was the basis of the appeal.
This also explains why the miracles cluster around key moments in redemptive history. They appear at the exodus, at the giving of the law, at the ministry of Elijah and Elisha, at the ministry of Jesus, and in the early church. They are not evenly distributed, and they are not the normal state of affairs at every period. They mark the great transitions when God is doing something decisive and wants it known. When the message is new and the stakes are highest, the signs are most concentrated. This is a pattern, and reading Scripture honestly means noticing it rather than assuming miracles should be constant throughout every era.
For the modern reader, this means the proper response to a miracle is not primarily awe at the event but attention to the message it confirms. What is God saying here? What does this sign reveal about Jesus? What does it call me to believe? A sign that produces amazement but no faith has failed its purpose. A sign that produces faith has done exactly what it was written for. So when we read about the sea dividing or fire falling or a dead man walking out of a tomb, we should ask the interpretive question John himself supplies: what do these written signs call me to believe about the one they point to?
What About John the Baptist's Doubt?
Matthew 11 preserves a searching moment. John, in prison, sends his disciples to ask Jesus whether he is the one to come or if they should look for another. Jesus does not answer with a bare yes. He answers with signs: the blind receive their sight, the lame walk, the lepers are cleansed, the deaf hear, the dead are raised, and the poor have good news preached to them. Then he adds a beatitude for the one who is not caused to stumble by him. The answer is an appeal to evidence, and the evidence is a set of miracles that match prophetic expectation.
This is remarkable for several reasons. First, Jesus treats the miracles as sufficient evidence for a struggling believer. He does not scold John for asking. He sends back a catalogue of signs. Second, the signs are not random; they echo the prophets, especially Isaiah's description of the coming age. The miracles say something specific: this is the messianic era, and I am the one Isaiah described. The sign identifies without ambiguity. Third, the beatitude at the end acknowledges that the evidence can be rejected. Some would stumble over a Messiah who fits the prophets but not their own expectations.
That last point is worth pausing over. The signs were clear enough to answer John's question, yet many who saw clear signs still did not believe. That should be repeated because of its importance. It shows that miracles alone do not compel faith. Doubt is not always a failure of evidence; sometimes it is a posture of the heart. The same sign that produces trust in one person can produce resentment in another. The rich man's brothers, Jesus says elsewhere, would not be persuaded even if someone rose from the dead. The sign is sufficient, but it is not coercive. Faith remains a response, not a reflex.
For those who struggle with doubt, Matthew 11 is a comfort. Jesus does not despise the question. He supplies evidence and pronounces a blessing on those who do not stumble. Faith is not the absence of questions; it is a settled trust that survives them. If you have asked whether Jesus is the one, you are in the company of John the Baptist, and Jesus' answer to you is the same as his answer to John: look at the signs. They were written for exactly this purpose, so that you may believe and have life.
What the Signs Are Not For
Because John states the purpose so plainly, we can also say what the signs are not for. They are not given to satisfy a demand for proof on our own terms. Jesus refused to perform signs for skeptics who wanted a performance to order. They are not given to make us feel that God owes us a demonstration. They are not given as a formula we can use to guarantee our own preferred outcomes. The sign is God's free act, not a lever we pull. When we begin to treat miracles as a mechanism for controlling outcomes, we have reversed the relationship entirely, and the sign is no longer pointing where it should.
They are also not given to prove that every believer should expect a particular kind of miracle at every moment. The records are selective, and the eras are uneven. Faithful Christians have differed on what to expect from God in the present age, and we should be honest about that rather than pretending the question is settled by a slogan. What is settled is the purpose: the signs we have are written so that we may believe and have life. Whatever else we conclude about the present, we must not use that discussion to evade the purpose. The signs point to Jesus, and the point is faith and life in him.
They are not given to make the extraordinary the normal measure of spiritual health. If your walk with God is quiet, that is not evidence that something is wrong. Many faithful believers have lived through long seasons without any dramatic intervention, and the Bible does not treat that as failure. Miracles cluster at decisive moments because they serve decisive revelation. They are not distributed as a reward for intensity. Measuring your faith by frequency of the extraordinary will leave you either proud or despairing, and both are the wrong destination for a sign.
Finally, the signs are not given to us as ends in themselves. They are given as witnesses. Every sign in Scripture is a servant of the message, and the message is the person of Jesus Christ. If we love the miracles more than the one they reveal, we have inverted the whole thing. The sign points; the person is the point. So the right use of a miracle account is not to linger over the wonder but to follow the arrow to its destination. Read the sign, and then look where it is pointing. That is what John did with his entire book.
How to Read a Miracle Account Well
Practically, reading a miracle well means beginning with the stated purpose. Ask what the sign reveals about Jesus. In John's Gospel, each sign has a caption of sorts, a statement that follows or precedes it which tells us what it means. The same is true elsewhere. The sea reveals Yahweh as deliverer. The fire reveals Yahweh as the true God. The signs Jesus performed reveal him as the Christ, the Son of God. Begin with the identity question, and the rest of the account falls into place. This keeps the reading devotional rather than merely historical, and it keeps it honest rather than sensational.
Second, read the sign in its narrative context. Notice who is present, what they expected, and how they responded. In Exodus, the people fear Yahweh and believe. At Carmel, the people fall on their faces. In John, some believe and some report Jesus to the authorities. The responses are part of the meaning. A miracle account is not just an event report; it is a story about revelation and reception. Reading for the responses keeps us from abstracting the miracle into a general principle. The Bible gives us people who saw and reacted, and their reactions are instructive for our own.
Third, read the sign with the whole canon in view. The exodus becomes a pattern that the prophets and the apostles pick up. The language of sea and rescue reappears in the Psalms and the prophets and in the New Testament. The signs of Jesus echo the exodus and the prophets. Reading widely shows that the Bible is not a random collection of wonders but a coherent story in which each sign has its place. The more you see the pattern, the more each individual miracle gains weight. It is not an isolated oddity; it is one frame in a long and unified narrative of redemption.
Fourth, let the sign drive you to faith and life, which is what it was written for. That is the test of whether we have read it rightly. Did this sign increase my trust in Jesus? Did it deepen my sense that he is who he claimed to be? Did it move me toward the life he gives? If so, the sign has done its work. If we close the account merely impressed, we have stopped at the signpost. The written signs exist so that you may believe, and believing, may have life in his name. That is the goal of every miracle in the Bible.
Biblical fidelity check
What John 20:30-31 establishes is this: the signs recorded are a purposeful selection, and their stated purpose is belief that Jesus is the Christ, the Son of God, leading to life in his name. What it does not establish is that the recorded signs are the only miracles Jesus performed, since John explicitly says otherwise, nor that the Bible intends to provide an exhaustive catalogue of supernatural events. It also does not establish that miracles occur on demand, or that their frequency measures a person's spiritual condition. The passage is a statement of purpose, not a promise about the present distribution of signs.
A common misreading treats the miracles as self-contained spectacles, so that the value of a miracle account is the wonder itself. That is wrong because it ignores the stated purpose clause and the very word John uses. A sign exists to point beyond itself, and John tells us where it points: to the identity of Jesus and to the life found in him. Reading the signs for excitement rather than for faith inverts the purpose John states so plainly. The correction is simple: follow the sign to the person, and let the person produce the belief and the life the sign was written for.
Other passages that speak to John 20:30-31
Several related studies help fill out this theme. 1 John Bible Study Guide: Summary, Themes, Outline, and Gospel Connections shows how the same author reasons about belief and life in his letters. 1 John 5: Faith Overcomes the World develops the connection between believing and overcoming. 1 John 2: Light, Love, and Abiding traces what genuine belief looks like in practice. And 1 Kings 1: David Acts as Adonijah Rebels provides an Old Testament narrative that helps readers see how God works through human succession and providence, a useful contrast to the sign miracles in the Gospels.
Frequently asked questions
Why did John include only some of Jesus' miracles?
John answers this directly in the passage itself: the signs he wrote were chosen so that readers may believe that Jesus is the Christ, the Son of God, and that believing they may have life in his name. He says plainly that Jesus did many other signs which are not written in the book. So the selection is intentional and purposeful, not accidental or due to a lack of material. John had more than he could include and chose what served his stated aim: producing faith that leads to life. The right question is not why so few were recorded, but why these particular ones were chosen, and the answer is their power to reveal who Jesus is.
Are biblical miracles proof that Jesus is God?
Scripture presents the miracles as signs that reveal and confirm who Jesus is, and John states that they were written so that readers may believe he is the Christ, the Son of God. Acts 2:22 describes Jesus as a man approved by God by mighty works and wonders and signs which God did by him. So the miracles function as divine attestation, though Scripture also shows that many who saw them did not believe. Miracles are sufficient evidence, but they do not compel faith. They reveal; they do not coerce. The signs point clearly to Jesus, and the response of trust remains a genuine human response to that revelation.
Should we expect miracles today?
Faithful Christians have differed on this question, and this article does not claim to settle it. What the passage does establish is the purpose of the recorded signs: they were written so that readers may believe and have life in Jesus. The Bible records miracles in clusters at decisive moments in redemptive history, not evenly across every era, and the accounts are selective by John's own admission. Whatever we conclude about the present, we should not use the question to evade the purpose. The signs we have point to Jesus, and the aim is faith and life in him, not the frequency of the extraordinary as a measure of spiritual health.
