Confirmation Bias and John 5:39-44: Searching Scripture
Short answer: Confirmation bias is the well-documented human tendency to notice, trust, and remember information that supports what we already believe while ignoring or explaining away what contradicts it. In John 5:39-44, Jesus confronted people who searched the Scriptures intensely but missed Him because their reading served their existing commitments. The passage does not turn Bible study into a cold, neutral academic exercise. It does call us to read honestly, to let the text question us rather than only arming us for arguments, and to admit that our own hearts are capable of shaping what we are willing to see. Confirmation bias in Bible reading is not solved by cynicism or by endless doubt; it is addressed by repentance, humility, and a willingness to be corrected by the very words we claim to love.
What Confirmation Bias Actually Is
Confirmation bias is not a modern invention, nor is it limited to religious people. It is the ordinary way human minds work: we form a view, then we filter new information through it. We give more weight to evidence that flatters our position, we scrutinise evidence that threatens it, and we remember our wins longer than our losses. This does not require dishonesty. It happens quietly, in the selection of what we read, the questions we ask, and the conclusions we find satisfying. Proverbs 18:17 describes the same dynamic in legal terms: "He who pleads his cause first seems right; until another comes and questions him." The first story we hear sounds convincing until someone cross-examines it. That is a picture of how our own reasoning works when no one questions us.
In Bible reading this bias can operate without any conscious intent to deceive. A person who is convinced that God wants them to take a certain job may find dozens of verses about courage and stepping out in faith. A person convinced they should stay put may find dozens of verses about patience and waiting on the Lord. Both may be quoting real texts accurately. The problem is not the verses; it is the filter that decides which verses count and which are set aside. We are not usually aware of the filter. We experience our conclusions as simply what the Bible says. That is what makes confirmation bias so spiritually dangerous: it feels like faithfulness.
Scripture itself takes this seriously. Jeremiah 17:9 says, "The heart is deceitful above all things and it is exceedingly corrupt. Who can know it?" That is not a flattering assessment of human self-knowledge. It means our own inner life is not a neutral courtroom where we can reliably judge our motives. We can be sincerely wrong. We can be passionate about a text while using it to protect ourselves. The Bible does not ask us to live in perpetual suspicion of everything, but it does warn us against assuming that our first reading is the honest one. The heart is capable of arranging the evidence before we even notice we are doing it.
The practical shape of confirmation bias in Bible study is usually small and ordinary. It is the commentary we reach for because we already know we will agree. It is the friend we ask about a decision because we know what they will say. It is the verse we post and the verse we skip. It is the question we never ask because we are afraid of the answer. None of this requires bad motives. It only requires being human. The question John 5 presses on us is not whether we have biases, but whether we are willing to have them exposed.
The Scene in John 5:39-44
John 5 records a confrontation that began with a healing. Jesus healed a man on the Sabbath, and the religious authorities objected not because the man was still sick but because the day had been violated according to their understanding. The argument escalates until Jesus makes claims about His relationship to the Father that His opponents find intolerable. In that setting He says, as John 5:39-44 says, "You search the Scriptures, because you think that in them you have eternal life; and these are they which testify about me." The people He addressed were not casual about the Bible. They searched it. They were serious, committed, and presumably knowledgeable. Their problem was not laziness.
The verse is often read as an attack on Bible study itself. That is not what Jesus says. He does not tell them to stop searching the Scriptures; He tells them what the Scriptures are for. They thought the text contained life as a possession, and they missed the person to whom the text pointed. The irony is sharp: the very books they memorised and debated were testifying about the man standing in front of them, and their reading had become a shield against Him. They were not ignoring Scripture. They were using it. That is a more uncomfortable possibility than simple neglect.
Jesus continues in John 5:42, "But I know you, that you don't have God's love in yourselves." The issue is not only intellectual. It is a matter of love and allegiance. Then He names the social dynamic: they receive glory from one another and do not seek the glory that comes from the only God. Their reading was shaped by the community whose approval they valued. This is where confirmation bias and social pressure meet. What we are willing to see in the Bible is often tied to what we need to be true in front of the people whose respect we depend on. That is not unique to first-century Jerusalem.
The passage ends with a question, not a resolution. Jesus asks how they can believe when they receive glory from one another. He leaves them with the diagnosis. The text does not tell us how many of them repented. It simply holds up a mirror. That is what makes John 5 so useful for examining confirmation bias: it shows us people who were doing something religiously impressive, and it shows us what can go wrong inside it. The danger is not that we stop reading. The danger is that we read in a way that never lets the text read us.
Searching Without Seeing
The phrase "you search the Scriptures" implies effort, method, and persistence. These were not shallow readers. They had categories, memorised texts, and settled interpretations. Their failure was not a lack of information but a lack of openness to where the information led. They had already decided what the Messiah would look like and what He would do, and Jesus did not fit. So instead of revising their expectations, they revised their reading of Him. They found reasons to dismiss the evidence in front of them while holding tightly to the texts that seemed to support their position.
This is exactly how confirmation bias works in any area of life. We do not usually reject the truth outright; we explain it away. We find a technicality, a caveat, a reason why this case is different. The religious experts in John 5 had a whole arsenal of those. They could argue about the Sabbath, about authority, about lineage, about tradition. Each argument was plausible on its own. Together they formed a wall that kept the obvious from getting through. The more skilled the reader, the more sophisticated the wall can become.
There is a warning here for anyone who takes Bible study seriously. Knowledge can become a way of managing God rather than submitting to Him. The more verses we know, the more we can defend ourselves. The more theology we absorb, the more precise our excuses can become. This does not mean study is bad; it means study without repentance is dangerous. The Pharisees were not condemned for reading too much. They were condemned for reading in a way that protected them from the One the text was about.
Jesus does not say the Scriptures fail to testify. He says they do testify, and that His hearers were not willing to come to Him for life. The evidence was present. The willingness was not. That distinction matters because it means the problem is not ultimately a shortage of information. It is a posture of the heart. We can have all the right texts and still refuse the conclusion they demand.
When the Text Becomes a Mirror
James 1:19-25 describes the difference between hearing and doing with an image that fits this discussion. James says we should be swift to hear and slow to speak, and he warns against merely hearing the word and deceiving ourselves. He compares the person who hears but does not act to someone who looks at his natural face in a mirror and immediately forgets what he looks like. The mirror shows the truth, but it only helps if we stay with it long enough to act on what we see. Confirmation bias is one of the ways we walk away from the mirror unchanged.
When we read Scripture only to confirm what we already think, we are not really looking into the mirror. We are looking at a portrait we painted ourselves. The text becomes a tool for self-justification rather than a means of self-examination. James says the one who looks into the perfect law of liberty and continues in it will be blessed in what he does. The blessing comes not from information alone but from a sustained, honest gaze that leads to action. That kind of reading is uncomfortable because mirrors do not flatter.
Luke 6:41-42 makes the same point with the image of the speck and the beam. Jesus asks why we see the speck in a brother's eye while not considering the beam in our own. This is confirmation bias in moral form. We are experts at spotting the flaws in others, especially those who disagree with us, while remaining blind to our own. The passage does not forbid helping a brother with his speck; it requires that we first deal with our own beam. The order matters. Self-examination must come before correction.
Applied to Bible study, this means we should read with the expectation that the text will expose us, not just our opponents. We should ask not only what this passage says about them but what it says about me. That is a different kind of reading, and it is much harder to sustain. It requires the humility to believe that the beam in my eye might be the reason I am so confident about the speck in yours. It also requires the courage to let a passage overturn a conclusion I have held for a long time.
Itching Ears and Chosen Teachers
Paul's warning in 2 Timothy 4:3-4 describes a related danger from a different angle. He writes that a time will come when people will not listen to sound doctrine but will heap up teachers for themselves according to their own desires. The phrase is about appetite, not just opinion. People will choose teachers who say what they want to hear. This is confirmation bias institutionalised. It is not only that we filter what we read; it is that we select the voices that will do the filtering for us. We build a library and a podcast queue that agrees with us and call it discernment.
The danger Paul describes is not that people stop caring about teaching. It is that they care about teaching that suits them. The teachers are real, the sermons are real, the books are real. But the selection is driven by lust, by what the hearer wants. This can happen on any side of any debate. The conservative can choose only the voices that confirm his traditions; the progressive can choose only the voices that confirm her suspicions. The mechanism is the same. The appetite decides before the text is opened.
One safeguard is to read people who disagree with us, and to read them fairly. This does not mean treating all positions as equally valid or pretending that truth is unknowable. It means refusing to caricature the other side and being willing to state their case in a way they would recognise. Proverbs 18:17 says the first to plead his cause seems right until another questions him. We need the questioning. We need people who will press us, and we need to give their arguments a fair hearing rather than a straw-man burial.
Another safeguard is to notice what we avoid. If there is a book of the Bible we never open, a topic we never study, a question we never ask, that avoidance is worth examining. It may be simple preference. It may also be self-protection. The itching-ears warning is not only about others; it is about us. We are all capable of curating a teaching diet that keeps us comfortable. The question is whether we are willing to be disturbed by the word of God.
Reading Honestly Without Becoming Cynical
The response to confirmation bias is not to doubt everything, including the plain teaching of Scripture. That would be its own kind of bias, a bias toward suspicion. The Bible claims to be understandable and true. It calls us to believe it, not to hold it at arm's length forever. The goal is not paralysis but honesty. We can read with confidence and still be teachable. We can hold convictions and still be willing to have them tested. The opposite of confirmation bias is not uncertainty; it is integrity.
Practically, honest reading looks like reading whole books instead of isolated verses. It looks like paying attention to context, genre, and the flow of an argument. It looks like noticing when a text is saying something we did not expect and sitting with that discomfort instead of rushing past it. It looks like inviting correction from people who know us and who love us enough to speak. It looks like praying, as the psalmist did, that God would open our eyes to see wonderful things in His law, and being prepared for what He shows us.
It also looks like repentance. When Jesus confronted the experts in John 5, He did not offer them a technique. He exposed a heart condition. Confirmation bias is not finally solved by a method, though methods help. It is solved by a willingness to come to Christ, to receive life from Him rather than from our own correctness. The people in that passage were not willing to come. That is the tragedy the text preserves for us. The remedy is available: humility, honesty, and a readiness to be wrong.
None of this means every disagreement is a sign that we are biased. Sometimes we are right, and the text really does say what we think it says. The point is not to second-guess every conclusion. The point is to hold our conclusions with open hands, to keep reading, and to let the word of God be the authority rather than our need to be vindicated. That is a lifelong posture, not a one-time fix. It is also, by God's grace, a fruit of the Spirit's work in a heart that He is teaching to listen.
Biblical fidelity check
What John 5:39-44 establishes is specific: Jesus told a group of serious Scripture readers that the Scriptures testified about Him and that they were unwilling to come to Him for life. The passage does not establish that diligent Bible study is bad, that knowledge is dangerous in itself, or that the religious experts were simply ignorant. It also does not give us a psychological theory of bias or a step-by-step method for overcoming it. It records a confrontation and a diagnosis. We should be careful not to load the text with more than it carries, even when its implications are wide.
A common misreading is to treat this passage as a blanket condemnation of anyone who disagrees with us, as if our opponents are always the biased ones and we are always the honest readers. That is confirmation bias wearing a Bible verse as a badge. Jesus was not speaking to a generic other; He was speaking to people who thought their reading was correct. The passage should first search us. It does not tell us that every tradition is corrupt or that every confident reader is a Pharisee. It tells us that it is possible to search the Scriptures and still refuse the One they point to, and it invites us to ask whether we are doing the same.
Other passages that speak to John 5:39-44
Several other passages help frame the issue of reading Scripture honestly. James 1:19-25 describes the difference between hearing the word and being changed by it, and it warns against deceiving ourselves. Luke 6:41-42 presses the priority of examining our own eye before correcting a brother. Proverbs 18:17 reminds us that a case sounds convincing until it is questioned, and 2 Timothy 4:3-4 warns against choosing teachers by appetite rather than by truth. For related studies, see James and John in Scripture: A Scripture-First Bible Study Guide, What Does 1 John 1:1 Mean? Context, Theology, and Application, What Does 1 John 1:8 Mean? Context, Theology, and Application, and 1 John 1:9 Meaning: Confession, Forgiveness, and Cleansing.
Frequently asked questions
Does John 5:39-44 mean Bible study is pointless?
No. Jesus does not tell the experts to stop searching the Scriptures. He tells them what the Scriptures are for: they testify about Him. The problem was not the searching but the refusal to come to Him for life. Diligent study is good and commanded. What the passage exposes is the possibility of studying without submitting to what we find. The remedy is not less reading but reading with an open, repentant heart that is willing to follow the text where it leads, even when it leads somewhere uncomfortable.
How can I tell if confirmation bias is shaping my Bible reading?
Some practical signs include only reading authors you already agree with, avoiding certain books or topics, feeling defensive when a text is explained differently, and being more skilled at finding flaws in others than in yourself. James 1:19-25 and Luke 6:41-42 both call for self-examination before correction. A useful habit is to ask what a passage would mean if it were spoken directly to you rather than to your opponents, and to invite a trusted believer to challenge your reading honestly.
Does admitting bias mean I cannot be confident in what the Bible teaches?
No. Confidence in Scripture is not the same as confidence in your own ability to read it perfectly. Christians have historically held firm convictions while also confessing that their understanding is partial and open to correction. The opposite of confirmation bias is not endless doubt; it is honesty and humility. You can hold a conviction firmly and still be willing to have it tested by the text and by other believers, trusting that God will lead His people into truth by His Spirit.
