Short answer: Matthew 6:16–18 does not command fasting and does not forbid stopping a fast. Jesus begins with "when you fast," treating fasting as something his hearers will do, then turns to motive: the hypocrites disfigure their faces so others will see they are fasting. The sin he names is being seen by people, not ending a fast. So stopping a fast is not called sin here, while fasting to win human approval is what this text warns against.
Where fasting is aimed: the setting of Matthew 6:16-18
Matthew 6:16–18 belongs to the Sermon on the Mount, where Jesus teaches his disciples in Galilee while a crowd shaped by the law and the prophets listens in. This is instruction about life under God's reign, not a rulebook for one ceremony. The unit is the third in a series: giving, prayer, then fasting, each built the same way. A warning about practice done for display comes first, then a contrast with hidden practice, then a promise that the Father who sees in secret rewards. Jesus assumes fasting will happen; he says when you fast, not if. The question is whom the practice is aimed at.
The immediate setting matters. These verses follow the teaching on prayer in Matthew 6:5–15, including the pattern prayer and the saying about forgiving trespasses. That earlier unit ends by naming the Father as the one who sees, and this one keeps the same focus. What follows turns to treasure on earth and treasure in heaven, so the theme across all of it is where a person's reward is stored. The sermon as a whole presses a righteousness that exceeds that of the scribes and Pharisees, and it warns against serving two masters. Fasting sits inside that larger argument about loyalty, not off to the side as a separate topic.
The literary shape is worth noticing. Jesus describes the hypocrites with sad faces who disfigure themselves so others will see they are fasting, and he says they have received their reward. Then he tells his disciples to anoint the head and wash the face, ordinary grooming that hides the practice, so the fasting is seen by the Father in secret rather than by people. The unit makes one point: religious devotion is directed to the Father, not to an audience. Nothing here commands fasting or forbids stopping it. It governs the aim of the practice. Anyone with health concerns, an eating disorder, or medical needs should seek appropriate care and not treat fasting as an obligation that overrides wisdom.
What Jesus actually says about fasting
Notice the first word of the passage: when. Jesus does not say if you fast, and he does not introduce fasting as a new requirement. He assumes his listeners already practice it and speaks to how it should be done. That single word matters for the question at hand. If stopping a fast were itself a sin, we would expect a command here that fasting is obligatory. Instead Jesus treats fasting as a normal devotional practice his hearers engage in, and he spends his words on the manner of it rather than on enforcing it. The passage regulates motive, not attendance.
The contrast is between two kinds of being seen. The hypocrites are described with sad faces, and Jesus says they disfigure their faces so that others will notice they are fasting. The point is performance: making your appearance look miserable in order to be observed. Against that, Jesus tells the one fasting to anoint the head and wash the face, ordinary grooming that hides the fast from onlookers. The audience shifts from being seen by men to being seen by your Father who is in secret. The Father's seeing is the whole audience Jesus cares about.
The promise attached is that your Father, who sees in secret, will reward you. The text does not specify what the reward is, and it does not promise health, relief, or any particular outcome. It simply leaves the reward in the Father's hands. That is worth saying plainly, because fasting is sometimes treated as a lever that guarantees a result. Jesus also does not say the one who stops fasting loses the Father's notice. What he exposes is religious display, not the honest limits of a body that needs care. Anyone with health concerns, an eating disorder, or medical needs should seek appropriate care and not treat fasting as a spiritual obligation that overrides wisdom.
What Jesus says about fasting and being seen
Matthew 6:16–18 opens with the word when, not if. Jesus assumes his disciples will fast, and he tells them how to go about it: wash your face, anoint your head, and skip the sad expression that announces to everyone what you are doing. Notice what he does not say. He never commands fasting here, and he never says that ending a fast is a sin. The wrong he names is the desire to be seen by people as one who fasts. The hypocrites in view disfigure their faces so that others will notice. Their reward is the attention they wanted, and that is all they get. The passage does not treat stopping a fast as sin; it warns against fasting for applause.
This is the third movement in a series. Jesus has already spoken about giving in secret and about prayer in secret, and each time the pattern is the same: hidden devotion to the Father over against display before people. The prayer teaching just before this includes the Lord's prayer and the saying about forgiving trespasses, which reminds us that the audience for our devotion is God, not a crowd. The verses that follow turn to treasure on earth and treasure in heaven, so the whole section is about where a person's reward is stored. Read together, the immediate context makes one point: religious devotion is directed to the Father, not to an audience.
The wider Sermon on the Mount frames all of this. Jesus is describing a righteousness of the kingdom that exceeds that of the scribes and Pharisees, and he warns elsewhere in the sermon that no one can serve two masters. Fasting fits that framework. It is a voluntary practice, and the text treats it as wisdom rather than obligation. If you fast, do it for the Father who sees in secret. If you stop, that is not the sin this passage names. The sin is performing devotion for people. Anyone with health concerns, an eating disorder, or medical needs should seek appropriate care and should not treat fasting as a spiritual obligation that overrides wisdom.
Where readers disagree about fasting
Careful readers part ways over whether Jesus is assuming a practice or correcting one. Some point to the word when and hear an expectation: he says when you fast, not if, and they take fasting as a normal discipline for disciples alongside prayer and giving. Others read the same word as a description of something his hearers already did, and notice that in this passage he spends his words on how to fast, not on whether to. The text itself settles neither question. It gives no frequency, no duration, and no rule about starting or stopping.
What the passage does make plain is direction. Jesus contrasts the hypocrites, who disfigure their faces so that others will see they are fasting, with the disciple who anoints his head and washes his face so as not to be seen by men. The fast is aimed at the Father who is in secret, and the promise attached is that the Father who sees in secret will reward. That is the center no reader should lose. Fasting here is a matter of hidden devotion to God, not a performance for an audience, religious or otherwise.
That center cuts two ways. It forbids turning this passage into a law that condemns someone who ends a fast, since Jesus never commands a length or a stopping point, and it forbids using hiddenness as cover for display. Honest readers may still differ on how binding the practice is for the church today, and that disagreement should be named without contempt. Anyone with health concerns, an eating disorder, or medical needs should seek appropriate care and not treat fasting as a spiritual obligation that overrides wisdom.
The Father who sees in secret
Jesus has just taught his disciples to pray, and he immediately turns to fasting. Notice what he assumes: he says when you fast, not if. Fasting was part of the religious air people breathed. His concern is not whether they fast but who they are trying to impress. The hypocrites disfigure their faces so others will notice. Jesus answers with a quiet counter-command: wash your face, anoint your head, look ordinary. The point is not to hide fasting from God, who already sees, but to stop using it as a performance for people. The reward language is sober. Attention from others is a full payment, and nothing further is owed.
This is where the passage meets Christ. Jesus himself fasted in the wilderness, and he refused to turn that hunger into a spectacle or a shortcut to prove who he was. He is the one whose righteousness goes deeper than any outward display, and here he hands his disciples something better than an audience: a Father who sees in secret. That changes what fasting is for. Acceptance with God does not rest on how long or how strictly we go without food. It rests on the work and mercy of Christ. Fasting becomes a response of love to the Father, not a transaction that secures his favor.
So the question of whether you may stop fasting is not answered by a rule about minimums. Jesus addresses motive, not measurement. If you stop because you have begun to perform, or because you never began, that is worth examining honestly before God. But the passage gives no quota to keep, and it never makes fasting a condition of the Father's love. It also gives no permission to ignore the body he made. Anyone with health concerns, an eating disorder, or medical needs should seek appropriate care and let wisdom, not spiritual pressure, set the terms.
One more thing stays central. The Father who sees in secret is not watching for failure. He is the Father Christ reveals, and the reward he speaks of is his own attentive care, not a wage we earn. That frees a person to fast or to refrain without either pride or fear, because standing before God was settled by mercy before any of our disciplines began.
When you stop fasting, who is watching
Jesus turns from the reward of fasting to the way it is done. In 6:16 he pictures people who disfigure their faces so others will notice they are fasting. His alternative in 6:17–18 is almost startling in its ordinariness: anoint your head, wash your face, look like a normal day. The point is not that fasting must be invisible in every circumstance, but that the practice is directed to the Father who sees in secret. So examine both ends of a fast. Why did you begin, and why are you stopping? If either answer is shaped mainly by what people at church or online will think, this passage has found you.
There are honest reasons to end a fast: illness, weakness, medication, a body that is struggling, or simple good sense. Ending a fast for those reasons is not a spiritual failure, and it does not need an announcement. Do it before the Father who sees in secret, without apology and without shame. Where you can keep a fast hidden, keep it hidden. Let your face be ordinary. This is not secrecy for its own sake; it protects the practice from becoming a performance. Anyone with health concerns, an eating disorder, or medical needs should seek proper care and let wisdom, not obligation, govern the decision.
The ground under all of this is grace. The Father's reward is his to give, not a wage you can calculate from hours or skipped meals. If fasting has become a source of pride, or of anxiety about whether you are doing enough, say so to a pastor or a trusted believer and let the conversation pull you back to mercy rather than performance. Then the next fast, and the next ordinary meal, can be offered to a Father who already sees and already knows, and who is not waiting to be impressed.
Biblical fidelity check
Read closely, Matthew 6:16–18 turns on one small word: when. Jesus does not command fasting here; he assumes it as an ordinary practice among his hearers and then corrects how it is done. The hypocrites are pictured with sad faces, deliberately making their appearance look miserable so others notice. The contrast runs between being seen by men and being seen by your Father who is in secret. The risk in this passage is turning that contrast into a rule about frequency, duration, or how a fast should end, none of which the text addresses. It also makes no rule about stopping.
Careful evangelical readers disagree on whether fasting remains a normal church practice or belonged mainly to the old covenant setting, and on whether Jesus' words make it obligatory. Some read the when as an expectation for disciples; others read it as describing a practice he corrects rather than commends. What stays central is that fasting is directed to the Father, not performed for people, and that the Father sees what is hidden. His reward is left in his hands. This passage should not become a law condemning someone who ends a fast, nor a license for display.
Where Matthew 6:16-18 connects to the rest of Scripture
These themes run through the Sermon on the Mount, so it helps to read this passage alongside what Jesus says about forgiving others and about treasure in Matthew 6:14–20. For further study, compare Jesus Denounces Hypocrisy in Matthew 23 on forgiveness, Matthew 1: Genealogy and Birth of Jesus on secret devotion, Matthew 10: Jesus Sends the Twelve with Authority on treasure in heaven, and Matthew 12: Lord of the Sabbath and Sign of Jonah on fasting elsewhere in Scripture.
Frequently asked questions
Does Matthew 6:16 command Christians to fast?
Matthew 6:16 does not command fasting; it assumes it. Jesus says, “Moreover when you fast, don’t be like the hypocrites, with sad faces,” addressing people already practicing a known discipline rather than instituting a new requirement. The passage regulates motive and manner, not obligation, so fasting remains a voluntary devotion, not a law laid on every believer. What stays central is that the Father sees in secret, and Jesus redirects the practice away from display toward him.
What does it mean that the Father who sees in secret will reward you?
It means the Father notices fasting that no one else sees, and he himself is the one who responds to it. Jesus contrasts the hypocrites, who fast with sad faces so people will notice, with the disciple who washes and anoints normally so the fast stays hidden. The hypocrites receive their reward in the notice they wanted; the hidden fast is left entirely to the Father. Jesus states this as a promise about the Father's character, not a formula for controlling what the reward will be.
How can I finish a fast in a way that doesn't turn it into a performance for other people?
End the fast quietly, letting your appearance return to normal so no one can tell by looking that you were fasting. Jesus tells those who fast to anoint their head and wash their face, so the fasting stays between them and their Father who sees in secret (6:17–18). The hypocrites in this passage disfigure their faces to be seen by men, and Jesus says they have already received their reward. The point is not hiding fasting from God but refusing to trade a private offering for public notice.
