Short answer: In Matthew 6:16–18 Jesus assumes his disciples will fast and tells them how: without sad faces and outward display, but quietly before the Father who sees in secret. The passage addresses motive and manner, not frequency, length, or method. Fasting belongs among the ordinary practices of a disciple, alongside giving and prayer, and seeking human notice empties it of reward. A Christian fasts and prays before God in secret, trusting the Father's sight rather than people's approval.
Fasting in secret before the Father who sees
Matthew 6:16–18 sits inside the Sermon on the Mount, Jesus' extended teaching to his disciples about life in the kingdom of heaven. The immediate unit is a short instruction on fasting, placed alongside parallel instructions on giving and prayer. Each one contrasts public display with secret devotion, and each one ends with the same quiet promise about the Father who sees in secret. The shape of the passage is compact and symmetrical: a warning against a wrong practice, a command about the right practice, and a promise about the Father. Jesus assumes his hearers will fast, and his concern is not whether but how.
The context matters. Jesus has just taught his disciples to give without announcing it and to pray without performing for an audience, and he has given them a model prayer. Immediately before this passage he warns that an unforgiving heart blocks the Father's forgiveness, as in Matthew 6:15: “But if you don’t forgive men their trespasses, neither will your Father forgive your trespasses.” Immediately after, he turns to treasure, urging his hearers to store up treasure in heaven rather than on earth. Read together, the whole section presses one question: who is your audience, and where is your treasure?
Fasting here belongs to the same covenant people who were taught to humble themselves before God. Jesus treats it as a normal expression of that humility, not a novelty or a technique. He does not command severity; he commands humility, and he warns against using fasting to be seen by men. That warning matters for anyone tempted to prove devotion through it, or drawn toward pride or self-harm. Those with health concerns or a history of disordered eating should seek pastoral and medical counsel. The passage keeps fasting inside a life oriented toward the Father rather than an isolated practice.
Fasting without an audience
Jesus begins with a word that settles a question. He says "when you fast," not if. Fasting was an expected practice among his hearers, alongside giving and prayer, and he assumes his disciples will keep it. Yet the same word had already exposed the problem: the hypocrites fasted too. Their fault was not fasting but staging it. They wore sad faces and disfigured their appearance so that people would notice their devotion. Jesus calls this a performance with an audience, and he says plainly that the recognition they wanted is the whole payment: "Most certainly I tell you, they have received their reward." Nothing further is owed them.
Against that picture he sets ordinary grooming. Anoint your head, wash your face. In that world these were everyday acts, the sign that nothing unusual was being staged. The point is not that fasting should leave no trace at all, but that it should not be arranged for spectators. What matters is the Father who sees in secret. His attention, not a congregation's, is the audience Jesus names. And the promise is that he "will reward you," though the text never says what the reward is. Jesus leaves that open, which keeps fasting from becoming a transaction with a predictable payout.
That silence about the reward matters, because fasting can quietly turn into a way of proving something, to God or to ourselves. The passage commands humility, not severity. It never measures a fast by how hard it feels or how unwell it leaves us. If you have health concerns, a history of disordered eating, or pressure to prove devotion through fasting, seek pastoral and medical counsel. Grace comes first: the Father who sees in secret is already looking on you in Christ, and your fasting adds nothing to his love. It is a quiet response, not a payment.
Fasting before the Father who sees in secret
Jesus begins with the word when, not if. Fasting is assumed among his disciples, listed alongside giving and prayer in the same stretch of teaching. What he addresses is manner and motive, not frequency, length, or technique. The hypocrites in view make their faces look miserable so that others will notice their devotion. Jesus says plainly that they have received their reward: the notice itself is all they get. He then tells his disciples to anoint the head and wash the face, ordinary grooming that hides rather than advertises the fast. The practice is real, but it is directed toward the Father, not toward an audience.
The surrounding verses give this instruction its shape. Just before, Jesus teaches giving without announcement and prayer without performance, and he warns that an unforgiving heart blocks the Father's forgiveness (6:14–15). Just after, he turns to treasure, urging hearers to store it in heaven rather than on earth (6:19–20). Read together, the whole section asks one question: who is your audience, and where is your treasure? Fasting belongs to people already taught to humble themselves before God, so Jesus treats it as a normal expression of devotion rather than a novelty. The context keeps fasting from becoming an isolated technique and places it inside a life oriented toward the Father.
The promise here is specific: the Father who sees in secret will reward. It is not a guarantee of health, breakthrough, or emotional relief, and the text commands humility, not severity. Fasting can curdle into pride or become a tool of self-harm, so anyone with health concerns, a history of disordered eating, or pressure to prove devotion through severity should seek pastoral and medical counsel. The central call stays simple. Fast and pray before God in secret, trusting his sight rather than people's approval, and let the practice sit within a life that treasures him above every audience.
Fasting before the Father, not before an audience
Jesus assumes his disciples will fast. He says "when you fast," not if, and the contrast he draws is not between fasting and not fasting but between fasting for people and fasting for God. The hypocrites in view make their faces look miserable so others will notice their devotion. Jesus tells his hearers to anoint the head and wash the face, ordinary grooming that hides the practice rather than advertising it. The reward he names is from "your Father, who sees in secret." The text forbids seeking human notice. It does not set a schedule, a length, a method, or a diet. Anyone who turns this passage into a rulebook has added what Jesus did not say.
Readers who take the Bible seriously disagree about how binding fasting is for Christians now. Some point to Jesus' words about his disciples fasting after he is taken away and read this passage as a continuing expectation for the church. Others see fasting as a good and permitted discipline that the new covenant does not command, and they warn against making it a measure of spirituality. Both readings can honor the text, because the text itself commands humility, not severity. What stays central is the direction of the heart: toward the Father who sees, not toward an audience that approves. The promised reward is left undefined, and we should not fill in what Jesus left open.
Fasting can go wrong in two directions. It can feed pride, becoming a private scorecard or a public performance, which is exactly what Jesus exposes. It can also become a tool of self-harm, driven by pressure to prove devotion through severity. The passage commands hiddenness and ordinary care for your appearance, not damage to your body. Anyone with health concerns, a history of disordered eating, or pressure to prove something through fasting should seek pastoral and medical counsel. Grace comes first: the Father sees in secret and rewards, and our fasting rests on that welcome rather than earning it. Corporate fasting can be consistent with this concern when the aim remains the Father's notice, not ours.
Fasting before the Father who sees in secret
Jesus has just taught his disciples to pray, and he moves straight to fasting without treating it as optional or exotic. He assumes his people will fast, the way he assumes they will give and pray, and his concern is the audience they choose. The hypocrites in view make their faces look grim and disfigure them so that others will notice their devotion. Jesus says plainly that they have received their reward, meaning the notice itself. The fasting he describes is ordinary and hidden: wash your face, anoint your head, go about your day, and let the Father who sees in secret be the one who knows.
Notice what Jesus does not say. He does not set a length, a schedule, or a severity, and he never measures devotion by how much food is refused. The one command in the passage is about secrecy and humility, not intensity. That matters, because fasting can slide into pride or into a way of proving something to God or to onlookers. Jesus locates the whole practice in the Father's hidden sight, which means it can be simple, brief, and unseen. Anyone drawn to fasting should let this text set the tone, and anyone facing health concerns or pressure to prove devotion should seek wise pastoral and medical counsel rather than treat severity as the goal.
The passage never mentions Christ's work, and we should not force it to. Its gospel connection is quieter. The Father who sees in secret is the Father who welcomes sinners for the sake of his Son, so those who have received mercy can come to him with confidence instead of performing for an audience. Fasting then becomes a small, honest way of saying that God's approval is already given in Christ, not earned by a sad face. The reward Jesus speaks of is finally the Father himself, known through the Son, and that is a treasure no moth or thief can touch.
Fasting without an audience
Jesus begins with the ordinary: when you fast, do not put on a sad face or disfigure it so others notice. The hypocrites in view wanted to be seen fasting, and Jesus says plainly that they have received their reward (6:16). His instruction is not complicated. Anoint your head and wash your face, the normal routines of the day, so that nothing about your appearance announces what you are doing. The point is direction, not secrecy for its own sake. Fasting is aimed at your Father who is in secret, and he sees what no one else sees. If you mention it afterward so that someone will be impressed, you have moved the audience back to people.
Before you begin, ask what you actually want. Do you want God, or do you want someone to notice? Mixed motives are normal, and the text does not ask you to pretend they are pure. Bring the mixture to God instead of dressing it up. Keep the practice simple and unhurried, one ordinary part of a life that also gives quietly and prays honestly. And do not measure your standing before God by how often or how long you fast. The Father's seeing is the ground you stand on, not a score you keep. Grace comes first: you fast as a child already known, not to earn attention.
Two cautions belong here. Fasting can quietly become a source of pride, a private achievement you mentally compare with others. It can also become a tool of self-harm, especially under pressure to prove devotion through severity. If you have health concerns, a history of disordered eating, or people pushing you to demonstrate godliness this way, seek pastoral and medical counsel. The text commands humility, not severity. Jesus promises that your Father, who sees in secret, will reward you (6:18), and he does not tell you what form that reward will take. Leave the outcome with him.
Biblical fidelity check
Read Matthew 6:16–18 closely and two risks appear. First, the word "when" in "when you fast" assumes fasting is a practice, not an optional extra, so treating the passage as permission rather than expectation flattens it. Second, Jesus' target is stagecraft: sad faces and disfigurement aimed at being seen. Verse 16 says of the hypocrites "they have received their reward", meaning the notice they wanted is the whole payment. The instruction to anoint the head and wash the face is ordinary grooming, the sign that nothing is being staged.
Evangelical readers agree Jesus forbids fasting for display and commends fasting before the Father, but they differ on how binding it is today. Some read it with Jesus' words about his disciples fasting after he is taken away as a continuing expectation; others call fasting a good, permitted discipline not commanded under the new covenant, warning against making it a measure of spirituality. The text prescribes no schedule or method and names no reward. What stays central is the heart directed toward the Father, "who sees in secret", rather than toward an audience.
Related studies for Matthew 6:16-18
These verses sit inside a larger section on giving, prayer and treasure, so reading them alongside the Lord's Prayer and the teaching on treasure repays the effort. For further study, compare Jesus Denounces Hypocrisy in Matthew 23 on hidden devotion, Matthew 1: Genealogy and Birth of Jesus on prayer, Matthew 10: Jesus Sends the Twelve with Authority on treasure, and Matthew 12: Lord of the Sabbath and Sign of Jonah on reward.
Frequently asked questions
Does Jesus actually command his followers to fast, or is fasting something optional for Christians?
In this passage Jesus does not command fasting; he assumes it. He says "Moreover when you fast" (Matthew 6:16), addressing people who already fast rather than ordering anyone to begin, so the command here concerns how to fast, not whether to. Fasting is therefore treated as a voluntary devotion, not a requirement laid on every disciple. What Jesus insists on is direction: not performing for human notice but before your Father who sees in secret (6:17–18).
Why does Jesus tell people who fast to anoint their head and wash their face?
Jesus says this so a fasting person's appearance gives no signal to onlookers that they are fasting. In 6:16 he pictures hypocrites who disfigure their faces to be seen by men, and he says they have their reward already. Over against that, in 6:17–18 he directs ordinary grooming: anoint the head, wash the face, so the fasting is seen by your Father who is in secret, and he will reward you. The point is not the oil or water but hiddenness before God rather than display before people.
What reward does the Father give for fasting in secret?
Jesus does not name the reward; he simply says your Father who sees in secret will reward you. The point of the passage is contrast: those who fast to be noticed by people receive their reward in that notice, while the one who hides it from people is left to the Father's own recompense. So the reward stays unnamed and unclaimed here, a matter of the Father's knowledge and generosity rather than a specified benefit. What the passage does make clear is who gives it and that it comes from the Father who sees what is secret.
