Short answer: In Mark 7:14–23 Jesus teaches that nothing entering a person from outside can defile him, because food goes into the stomach rather than the heart. What defiles a person is what proceeds from within, and he lists evils like evil thoughts, thefts, pride and foolishness. Mark adds that in saying this Jesus was making all foods clean. So the passage answers the kosher question by locating the real problem in the human heart rather than in diet.
The setting of Jesus' teaching on what defiles
Mark places this teaching in the middle of an argument. Religious leaders have just challenged Jesus over his disciples eating with unwashed hands, and he answered by charging them with setting aside God's command to keep their own tradition, citing a vow that lets a man withhold help from his parents (7:9–13). That dispute is about human tradition overriding God's word. Jesus then turns from the leaders to the crowd, so the teaching that follows grows out of a real conflict, not a detached lecture on diet. Mark's Gospel has already shown friction over Sabbath and cleansing, so the reader is prepared for something weighty.
The literary shape is deliberate. Jesus calls the whole crowd, gives a public pronouncement about what defiles a person (7:14–16), and then, away from the crowd in a house, the disciples ask him about the parable (7:17). His reply sounds almost exasperated, and he explains that food passes through the body rather than into the heart, while the things that come out of the heart are what defile (7:18–23). The unit closes with a vice list, a form familiar in Jewish and early Christian teaching. Mark adds that Jesus was declaring all foods clean (7:19), a comment the narrator makes for readers who need its force explained.
Two details frame the passage. First, the food laws were given to Israel as part of its covenant identity, so a claim that all foods are clean is substantial, not a minor aside. Second, immediately after this Jesus travels toward Tyre and Sidon and heals a Gentile girl (7:24–30), widening the horizon of the ministry. The private explanation to the disciples shows this was teaching they needed help to grasp, not a throwaway line. Because the passage frees consciences, it should never be used to pressure or look down on believers who keep kosher or other food convictions for family or conscience.
Where defilement actually comes from
The word that carries this passage is defile, and it means to make a person unclean before God, unfit for his presence and worship. Jesus takes that word out of the kitchen and puts it in the heart. He begins by calling the crowd to hear and understand, then states the principle plainly: nothing entering a person from outside can defile him, but what comes out of him does. Mark calls the saying a parable, and the disciples ask about it privately in a house. Their confusion is telling, because the point was not a riddle but a reversal of where uncleanness is located.
Jesus' explanation sounds almost exasperated. He asks whether they too lack understanding, then reasons from the body: food does not go into the heart but into the stomach and then out to the latrine. Mark adds that in saying this Jesus was making all foods clean, his own comment on what Jesus' words implied. The list that follows is concrete and uncomfortable: evil thoughts, adulteries, sexual sins, murders, thefts, covetings, wickedness, deceit, lustful desires, an evil eye, blasphemy, pride and foolishness. The closing line repeats the point. These things come from within, and these are what defile a person.
Notice what this passage does and does not do. It declares that food cannot make a person unclean before God, which is why believers who keep kosher or hold family food convictions for conscience are not to be judged or pressured, and also not to be treated with contempt. Jesus is not licensing carelessness about what we do; he is saying the danger lies in the heart that produces the list. Grace comes first: Christ cleanses the heart that no diet could fix, and our response is to watch what comes out of us rather than what goes onto the plate.
What defiles a person: Jesus on food and the heart
Mark 7:14–23 begins with a public summons: Jesus calls the crowd to himself and tells them to hear and understand. The claim is stark. Nothing entering a person from outside defiles him; what comes out of him does. The disciples, still puzzled, ask privately, and Jesus sounds almost exasperated that they too miss it. Food, he explains, goes into the stomach and out of the body; it never reaches the heart, where defilement actually begins. Mark adds that by this saying Jesus was making all foods clean. The point is not that diet is trivial but that the heart, not the plate, is the real seat of the problem.
The setting sharpens the claim. Just before, Jesus charged the Pharisees and scribes with setting aside God's command to keep their own tradition, citing a vow that let a man withhold help from his parents. That dispute was about human tradition displacing God's word, and it opens the wider question of ritual purity. Mark places this teaching in a ministry already full of conflict over Sabbath and cleansing. The food laws were given to Israel as part of its covenant identity, so declaring all foods clean is a substantial statement, not a casual aside. The private explanation confirms the disciples needed help to grasp it.
Then Jesus lists what actually comes from within: evil thoughts, adulteries, sexual sins, murders, thefts, covetings, wickedness, deceit, lustful desires, an evil eye, blasphemy, pride, foolishness. These, he says, defile a person. The passage relocates the kosher question from the kitchen to the heart, and that is where its weight falls. For believers who keep kosher or other food convictions for conscience or family reasons, the text does not invite pressure or contempt. It frees them from judgment, since what we eat neither commends nor condemns us before the God who looks at the heart.
Where does defilement come from?
Jesus turns from the crowd to the disciples and locates the problem inside a person, not on a plate. Food passes through the body and out; it never reaches the heart, the seat of motive and will. Mark 7:19 reads, “because it doesn’t go into his heart, but into his stomach, then into the latrine, making all foods clean?” The setting matters: he has just confronted a tradition that let people sidestep care for parents (7:9–13). His point is that external rules cannot purify an unclean heart, and no meal can make one unclean before God.
Careful readers part ways over how far that sentence reaches. Some hear a plain verdict that the dietary laws are ended, since Jesus declares all foods clean. Others note that the immediate argument concerns ritual handwashing and that the wider setting aside of food laws is worked out later in the New Testament. Still others see the food laws as covenant markers for Israel whose purpose was fulfilled in Christ rather than simply discarded. What stays central is that Jesus is Lord over purity, the heart is the real problem, and no diet can cleanse it.
The list that follows keeps every reader honest: evil thoughts, sexual sins, murder, theft, greed, deceit, envy, slander, pride, foolishness. These come from within, which means the kosher-keeping believer and the bacon-eating believer stand on the same ground. Paul later tells the strong not to despise the scrupulous and the scrupulous not to judge the strong, since God has welcomed both. So a believer who keeps kosher for conscience or family reasons should meet no pressure or contempt here, and no one should treat a diet as proof of a clean heart.
The text frees consciences rather than arming them against each other.
The heart, the menu, and the one who cleanses
Jesus turns from the dispute about Corban to address the crowd directly, and the claim he makes is startling: nothing entering a person from outside defiles him, but what comes out does. Mark adds a parenthetical note that in saying this Jesus was making all foods clean. Notice where this happens. Jesus is not offering an opinion in a debate about dinner; he speaks as the one with authority to say what clean and unclean finally mean. The list that follows is not a list of exotic sins but ordinary ones: evil thoughts, theft, deceit, pride, foolishness. The problem he names is the heart, and no washing and no menu reaches it.
That diagnosis is meant to be uncomfortable. The disciples ask about the parable privately, and Jesus is almost exasperated: are you also without understanding? Food goes into the stomach, not the heart, so it cannot produce the defilement he is describing. What comes out of the heart does. This is why the passage points beyond itself. If the defilement is internal, then external remedies are helpless, and the cleansing needed has to come from somewhere other than our own discipline. Jesus describes the disease here; the gospel announces that cleansing comes through his work, not through what we eat or avoid. The cross is not yet in view, but the need for it is.
Mark's note that all foods are clean belongs to the wider movement in the New Testament in which the barriers between Jew and Gentile come down in Christ. That is why this text frees rather than pressures. A believer who keeps kosher for conscience or family reasons should not be judged, and a believer who does not should not be despised; the passage removes condemnation, not liberty. Paul makes the same point when he says each should be fully convinced in his own mind. What matters is that neither menu nor freedom becomes the ground of our standing. Christ is that ground, and he is the one who cleanses the heart no washing can reach.
Where defilement actually starts
Read the list in 7:21–22 slowly, and let it land. Jesus names evil thoughts, adulteries, sexual sins, murders, thefts, covetings, wickedness, deceit, lustful desires, an evil eye, blasphemy, pride, and foolishness. These are not the sins of a particularly bad group of people. He says they come out of the hearts of men, and he is speaking to his own disciples when he says it. The list does not sort neatly into scandalous and respectable. Pride and foolishness sit right beside murder. Honest reading means finding ourselves in it, not ranking ourselves above it.
Notice where Jesus puts the problem. Food passes through the body and does not touch the heart, which is why he can say that nothing entering a person from outside defiles him (7:18–19). That single observation settles the food question: kosher eating is not what makes anyone clean before God, and eating without kosher rules is not what makes anyone dirty. So a Christian may keep kosher freely, for conscience or family, and may eat without keeping kosher. But since the passage locates defilement in the heart, no one should despise or pressure the other. The text frees from judgment; it never licenses contempt.
The faithful response, then, is watchfulness grounded in grace, not fear of losing God's favor. Bring the heart itself to him, the place where the evils named here begin, rather than managing your standing through food rules or outward routines. That is a daily, ordinary work: noticing the evil thought before it becomes the deed, naming pride and deceit honestly, asking God to change what only he can change. This passage promises no particular outcome in this life. It simply tells us where to attend, and it tells us to attend there because we are already loved, not to earn that love.
Biblical fidelity check
Mark 7:14–23 was read in its argument, not as a loose saying about food. Jesus has just exposed a tradition that voided God's word, then calls the crowd and locates defilement in what leaves a person, not what enters. The disciples ask about the parable; his reply traces food to the stomach and the latrine, then lists evils rising from the heart. The risk is isolating verse 19, which is Mark's comment, from the sentence it explains, and turning a rebuke of hypocrisy into a bare permission.
The real disagreement is how far verse 19 reaches. Some read making all foods clean as ending the dietary laws outright; others say Jesus addresses handwashing tradition, with food laws settled later in the New Testament; still others see covenant markers fulfilled in Christ rather than discarded, leaving room for conscience. All admit the vice list describes their own hearts. What stays central: Jesus is Lord over purity, the heart is the problem, and no diet cleanses it.
Where Mark 7:14-23 connects to the rest of Scripture
These themes run through the rest of Scripture, from the food laws given to Israel to the early church's struggle over table fellowship. See Mark 1: The Beginning of the Gospel for the original dietary commands, Mark 10: Divorce, Riches, and True Greatness for Peter's vision, Mark 11: Triumphal Entry to Authority Questioned for Paul's teaching on weaker consciences, and Mark 12: Parable, Taxes, Resurrection, Widow for how the cross reshapes ordinary life.
Frequently asked questions
Does Mark 7:19 mean Christians are free to eat any food?
Mark 7:19 does say that Jesus declared all foods clean, but the point lands inside a larger argument about the heart, not a standalone food law. Jesus is answering a charge that his disciples ate with unwashed hands, and he shifts the question from what enters a person to what comes out. The list of evils that follows shows the real defilement is moral, rising from within. So the verse does open the food question, yet its force here is that external rituals cannot cleanse a heart that produces evil.
When Jesus said nothing outside a person can defile him, was he only addressing the handwashing traditions, or was he setting aside the kosher food laws themselves?
In this passage Jesus addresses both, and Mark makes the wider reach explicit by noting that his words made all foods clean (7:19). The dispute began over handwashing tradition (7:1–13), but Jesus moves to a principle about what defilement actually is: food passes through the body, not the heart, while evil comes from within (7:18–23). The passage does not spell out how the dietary laws were to be regarded afterward, and readers genuinely differ on that question. What stays central is Jesus' point that the heart, not external contact, is the source of defilement.
Is it wrong for a Christian to keep kosher for personal or family reasons?
No, this passage does not make keeping kosher wrong for a Christian. Jesus teaches that food entering the body does not defile a person, because it passes through the stomach rather than reaching the heart, and Mark notes that he was declaring all foods clean (7:18–19). What defiles a person is what comes out of the heart, the list of evils in 7:21–23. So the passage removes food rules as a matter of moral standing before God, while leaving a family free to keep kosher as custom or preference rather than as a requirement for acceptance.
