Fasting for God, Not for People: Matthew 6:16–18
Short answer: In Matthew 6:16–18, Jesus addresses fasting as a voluntary act of devotion directed to God rather than a performance for human approval. He warns against disfiguring the face to be seen fasting by others and tells his followers to anoint the head and wash the face so the fast is hidden. The purpose is to be seen by the Father who is in secret, and Jesus says the Father will reward those who seek him rather than human praise. Fasting here is not a way to manipulate God or earn favor but a quiet turning of the heart toward him.
The setting and shape of Jesus' teaching on fasting
Matthew 6:16–18 sits inside the Sermon on the Mount, where Jesus gathers a crowd of disciples and others and teaches them about a righteousness that goes deeper than outward compliance. He has just finished speaking about prayer, including the Lord's Prayer, and about forgiving others. Immediately after this passage he warns against storing up treasures on earth. Fasting appears here alongside giving and prayer as an ordinary practice, not an exotic one. The literary shape is a direct contrast: Jesus sets the practice of the hypocrites beside the practice of his disciples, speaking to his hearers personally in the second person.
The contrast is not between fasting and not fasting. Both groups fast. The difference is who is watching and who gets the reward. The hypocrites disfigure their faces so that people will notice their devotion. Jesus says they have received their reward already, meaning the applause they wanted is all they get. His disciples are told to anoint their head and wash their face, ordinary grooming that hides the practice rather than advertising it. The Father who sees in secret is the audience Jesus names. This is about inward reality before God, not outward performance before people.
Because this is teaching in the Sermon on the Mount, it describes a disciple's normal religious duty rather than a technique for getting something from God. Fasting here is never presented as a lever to move God or a way to earn favor. It is a practice done before the Father, who already sees. Pastors should say plainly that skipping food does not obligate God to answer, and that anyone with a health condition should talk with a doctor before fasting. The passage keeps the focus where Jesus puts it: the Father sees what is hidden, and he rewards.
Fasting without performance
Jesus assumes his followers will fast, saying "when you fast," not if. The word fast here means going without food for a time as an act of devotion. He contrasts that with the hypocrites, a term for those who act a part. They disfigure their faces and look sad so others will notice their devotion. Jesus says plainly that they have received their reward. The praise of people is all they get. The warning is not against fasting itself but against turning a private act of worship into a public performance for human approval.
Instead, Jesus tells his disciples to anoint their head and wash their face. That is ordinary grooming, the opposite of making oneself look pitiful. The point is not to hide the fact that you are a Christian, but to refuse to advertise your fasting. Your Father sees what is hidden and knows the heart. He is not impressed by appearances, and he does not need a show to be moved. Fasting is not a way to manipulate God or earn his favor. It is a quiet act of dependence on the Father who already sees and cares.
The phrase "in secret" points to what is hidden from people but fully known to God. The reward Jesus mentions is what the Father gives, not what people give. That does not guarantee health, wealth, or any specific outcome. It means the Father himself is the rewarder of those who seek him. If you have health conditions, talk to a doctor before going without food. Fast with wisdom, not to twist God's arm, but to draw near to the One who sees in secret and gives what is truly good.
Fasting directed to the Father who sees in secret
In Matthew 6:16–18 Jesus turns to fasting and immediately sets two practices side by side: the way the hypocrites fast and the way his disciples should. The hypocrites disfigure their faces so that people will notice their devotion. Jesus calls that a performance with a built-in payout, since human admiration is the whole reward. He then tells his followers to anoint the head and wash the face, ordinary grooming that hides rather than advertises the fast. The point is not that fasting must be invisible to everyone, but that its audience is the Father, who sees what is hidden.
The setting matters. These verses sit inside the Sermon on the Mount, where Jesus describes a righteousness that exceeds outward compliance. Giving, prayer and fasting appear in sequence as normal practices, and each one is redirected from human applause to God's eyes. Just before, Jesus teaches his disciples to pray to the Father who is in secret, and he ties forgiveness to the Father's forgiveness in 6:14–15. Just after, in 6:19–20, he contrasts earthly treasure with heavenly treasure. The same logic runs through all of it: what is done for people is paid in full by people.
So the passage assumes disciples will fast, yet it never presents fasting as a lever to move God or a way to earn his favor. The reward promised belongs to the Father's seeing, not to the faster's technique. Pastors do well to say plainly that skipped meals do not purchase answers, and that anyone with a health condition should seek medical advice before fasting. The heart of the practice is communion with the Father who sees in secret, and that is a reward no audience on earth can give.
Where readers disagree about fasting and what the text leaves open
Jesus begins with the words "Moreover when you fast" (Matthew 6:16), and that opening is doing real work. He does not say if you fast, as though it were optional, nor does he set a schedule. He assumes the practice and moves straight to motive. Evangelical readers agree on that much: fasting is expected among his followers, and it must be aimed at the Father rather than at an audience. Where they part ways is on how binding the assumption is. Some read the when as an expectation for every believer; others read it as wisdom for those who choose to fast. The text itself settles neither frequency nor duration, and it names no required kind of fast.
The contrast in the passage is between two audiences, not two diets. The hypocrites disfigure their faces so that others will notice, and Jesus says they have received their reward already (Matthew 6:16). His instruction is the opposite: wash your face and anoint your head so that you are not seen by men to be fasting, but by your Father who is in secret (Matthew 6:17–18). Notice what the text does not promise. It does not guarantee health, breakthrough, or any particular earthly result. Readers also differ on the reward: some hear present spiritual blessing, others a future reward in heaven. Both readings find support elsewhere in Scripture, and neither cancels the central point, which is that the Father sees what is hidden.
Because fasting is never presented here as leverage, pastors should say plainly that it does not manipulate God or earn favor. Grace comes first; our practice responds to a Father who already sees and knows. Anyone with a health condition, who is pregnant, or who takes medication should speak with a doctor before changing how they eat, and no one should measure another believer by their fasting. What stays central is quietness before God. The passage leaves frequency, duration, and type of fast unspecified, so those who fast should do so before the Father in secret rather than for human recognition.
Fasting before the Father who sees in secret
Jesus has just finished teaching his disciples to pray, and he continues with fasting in Matthew 6:16–18. He assumes his followers will fast, saying "when you fast," not if. The issue is not whether the practice is valid but who is watching. The hypocrites disfigure their faces so others will notice their devotion. Jesus says they have received their reward already, meaning the attention they wanted is the whole payment. He tells his disciples instead to anoint the head and wash the face, ordinary grooming that hides the fast rather than advertises it. The Father sees what is hidden.
Notice where the reward comes from. Jesus says the Father who sees in secret will reward you. Fasting does not purchase anything from God, and it does not force his hand. The fast is not the payment; the Father is the giver. This fits the gospel, where we approach God on the basis of Christ's work and not our own performance. Jesus himself fasted in the wilderness, dependent on the Father and prepared for the mission ahead. So fasting is a response of dependence, not a lever. Pastors should say plainly that fasting cannot manipulate God or earn favor.
There is a practical caution here too. Jesus exposes the desire to be seen, and that desire can dress itself up as spirituality. Fasting quietly, with a washed face, keeps the motive between us and the Father. Because the Father sees in secret, no hidden obedience is wasted, and no public display is needed. At the same time, fasting is a bodily practice, and those with health conditions should seek medical advice before undertaking it. The passage does not command a schedule or a duration. It calls for honesty before the God who already sees, and it leaves the reward in his hands.
Fasting without a performance
Jesus assumes his followers will fast, just as he assumes they will pray and give, but the instruction here is about who is watching. In 6:16 he describes people who disfigure their faces so others will notice their fasting. Their reward is the attention they wanted. In 6:17–18 he tells his disciples to anoint their head and wash their face, ordinary grooming that hides nothing and signals nothing. The point is not that fasting must be invisible to every human being, but that it must not be staged for human approval. God sees what is done in secret, and Jesus locates the reward there, in the Father's notice rather than in a crowd's admiration.
This passage describes a practice, it does not command every believer to fast on a schedule, and it does not make fasting a lever for getting things from God. The reward Jesus speaks of is the Father's, given by grace, not wages earned by hunger. So if you fast, keep your appearance normal and your attention on God; you do not need to announce it or look strained. If you do not fast, this text does not condemn you. What it does expose is the common temptation to turn any spiritual practice into a way of managing how others see us.
The practical question is motive. Before and during a fast, ask whether you are seeking God's face or human approval, and answer honestly, because the Father already sees. Pastors should also say plainly that fasting is not a way to manipulate God or earn his favor, and that anyone with a health condition, or who is pregnant, or who takes regular medication should seek medical advice before fasting. Done quietly, fasting becomes an act of dependence on a Father who sees in secret and rewards from his grace, not from our performance.
Biblical fidelity check
Read Matthew 6:16–18 within its setting: Jesus is correcting religious performance, and fasting is the third practice he addresses after giving and prayer. The risk here is turning a description of hypocrites into a caricature, or treating the grooming instructions as a ritual formula rather than ordinary washing. Notice the contrast: the hypocrite aims to be seen by men, while the disciple aims to be seen by the Father who sees in secret. The text never specifies how often to fast, how long, or from what. It assumes fasting happens and directs the motive.
The real disagreement is whether these verses command all believers to fast or give wisdom to those who choose it. Readers also differ on whether the reward is present spiritual blessing or future reward in heaven, and on whether fasting must mean food alone. The passage settles none of that. What stays central is that fasting is devotion before the Father, not a performance for an audience. The promised reward is what the Father gives, not guaranteed earthly results or human recognition.
Studies that take up Matthew 6:16-18 from another angle
For further study, consider how fasting appears elsewhere in Scripture as a response to grief, repentance, or seeking God's direction Matthew 1: Genealogy and Birth of Jesus, and how Jesus' teaching on prayer and treasure in the same sermon connects to this passage Matthew 10: Jesus Sends the Twelve with Authority. You may also explore the warnings against outward religion in the prophets Matthew 12: Lord of the Sabbath and Sign of Jonah and the New Testament call to present your body as a living sacrifice Matthew 13: Parables of the Kingdom.
Frequently asked questions
What is the purpose of fasting according to Matthew 6:16–18?
The purpose is to direct devotion to God rather than to people. Jesus says to anoint your head and wash your face so that you are not seen by men to be fasting, but by your Father who is in secret. The fast is meant to be a private act of communion with God, not a public signal of spiritual seriousness. Its aim is the Father's seeing and rewarding, not human admiration.
Does Jesus command all Christians to fast?
Jesus does not issue a direct command here, but he assumes his followers will fast. He says, "Moreover when you fast," not if you fast, which treats the practice as expected among his disciples. The instruction is about how to fast, not whether fasting is optional for everyone. It remains a voluntary act of devotion, and those with health conditions should seek medical advice before undertaking it.
What does it mean that the Father sees in secret and rewards?
It means God observes what is hidden from human eyes and responds to sincere devotion. Jesus contrasts those who fast to be seen by men, who receive their reward in that attention, with those whose fast is seen only by the Father. The Father who sees in secret will reward, though Jesus does not specify the timing or form of that reward. The point is that God, not people, is the audience and the giver.
