Short answer: Matthew 6:16–18 does not require fasting before communion, and it never mentions communion at all. Jesus says when you fast, not if you fast, so he assumes his disciples will fast at times, but he gives no rule about eating or abstaining before any meal. His concern in this passage is motive: fasting is not to be displayed so that others see it. He directs the practice toward the Father who sees in secret, and he attaches reward to that secret devotion rather than to the fast itself.
Where the teaching on fasting sits in the sermon on the mount
Matthew 6:16–18 belongs to the Sermon on the Mount, Jesus' extended teaching on what life before God looks like, given to his disciples with the crowds listening in. The unit on fasting stands in a series: giving, then prayer, then fasting, each handled the same way. A negative example comes first, then a positive instruction, then a promise about the Father who sees in secret. Jesus assumes his hearers do fast. The sentence begins with "when you fast," not "if." The question here is not whether the practice is legitimate but who it is aimed at. That shape matters for everything that follows.
The surrounding verses keep pressing one question: who is your audience? Just before this unit, Matthew 6:14–15 ties forgiveness received from the Father to forgiveness given to others, so mercy is already on the table. Just after it, Matthew 6:19–20 turns to treasure stored on earth or in heaven, where moth and rust consume and thieves break in. Fasting sits between those two concerns. In first-century Jewish piety, fasting, almsgiving and prayer were recognized marks of devotion, and they could easily become public badges. Jesus does not abolish these practices. He redirects them away from human applause and toward the Father.
The governing principle is stated plainly in the middle of the unit: devotion aimed at being seen by men has its reward already, while devotion aimed at the Father is seen by him. The hypocrites in view are not condemned for fasting but for arranging their faces to advertise it. Jesus' alternative is almost comically ordinary: anoint your head and wash your face, the normal grooming of a person going about the day. Nothing about the practice itself earns or forfeits anything. What the passage describes is the direction of the heart, and it leaves room for consciences to differ about eating or abstaining. Read in context, this is wisdom about hiddenness, not a new rule for measuring anyone's devotion.
What Jesus actually says about fasting
The hinge of this passage is a small word: when. Jesus does not say if you fast, as though fasting were an optional extra for the especially devout, nor does he command a fast here. He assumes his hearers will fast and tells them how to do it. That assumption fits the wider Sermon on the Mount, where he also speaks of when you give and when you pray. Fasting belongs among the ordinary practices of a person who belongs to God. But the wording matters: an expected practice is not the same as a commanded one, and nothing in these verses sets a schedule, a duration, or a rule about food before communion.
The contrast Jesus draws is not between fasting and feasting but between two audiences. The hypocrites are pictured with sad faces and disfigured faces, arranging their appearance so that others can tell they are depriving themselves. Their aim is stated plainly: to be seen by men to be fasting. Against that, Jesus says to anoint your head and wash your face, which is ordinary grooming, the opposite of making yourself look pitiful. The point is not that appearance is evil but that devotion performed for onlookers has already collected its payment. The fast itself may be real, yet the reward is spent on human notice.
Then comes the quiet phrase that reframes everything: your Father who sees in secret. Jesus locates the audience for religious devotion in God, not in the room. The Father sees what no one else sees, and the reward is described as coming from him, not from the impression left on others. This frees a person from measuring devotion by visibility, and it also forbids using another person's eating or abstaining as a gauge of their love for God. The passage gives no grounds for pressuring anyone about food before communion. It calls each person to honesty before the Father, who already sees.
What Jesus says about fasting and who sees it
Matthew 6:16–18 does not command fasting, and it never mentions communion. Jesus says, “Moreover when you fast, don’t be like the hypocrites, with sad faces” (Matthew 6:16), which assumes his disciples will fast at times without making it a requirement. The warning falls on motive and appearance: the hypocrites disfigure their faces so that others notice. Jesus tells his followers to anoint the head and wash the face, ordinary grooming that hides the practice, so that the Father who sees in secret is the only audience. The text addresses display, not eating. It says nothing that would make food, or the lack of it, a condition for coming to the table.
The setting is the Sermon on the Mount, where Jesus describes a righteousness that goes deeper than outward performance. The verses just before this unit deal with forgiving others, and the verses just after it turn to treasures on earth and in heaven. Read together, the whole stretch asks the same question: who is your audience, and where is your treasure? In first-century Jewish devotion, fasting, prayer and almsgiving were recognized marks of piety, and they could easily become public badges. Jesus does not abolish these practices. He redirects them away from human applause and toward the Father, who sees what is hidden.
A principle runs through the immediate context: devotion aimed at being seen by men has its reward already, while devotion aimed at the Father is seen by him. That principle governs how to read this passage, and it also guards against misusing it. Fasting is not set up here as a test of anyone's spiritual seriousness, and nothing in the text turns eating or abstaining before communion into a measure of devotion. The passage leaves the timing and frequency of fasting open. What it presses is secrecy and sincerity before God, not a new rule for judging the plate of the person beside you.
What Jesus says about fasting, and what he does not say
Start with what the text actually contains. Jesus speaks to people who fast and tells them how to do it: wash your face, anoint your head, and do not put on a sad face to be noticed. Matthew 6:16 says, “Moreover when you fast, don’t be like the hypocrites, with sad faces. For they disfigure their faces, that they may be seen by men to be fasting. Most certainly I tell you, they have received their reward.” He assumes fasting happens. He never commands it here, and he never mentions communion, bread, wine, or eating before a service. Careful readers on all sides agree on that much.
The genuine disagreement is about how far the principle reaches. Some believers treat fasting as a voluntary discipline worth practicing quietly, and they read the Father's promise to reward hidden devotion as an encouragement to keep it. Others see fasting as largely tied to particular occasions or to the old covenant, and they are cautious about turning a practice Jesus assumed into a normal church obligation. Both readings can honor the text. What the passage forbids is unmistakable: performing devotion so that people will notice. It sets no rule at all about food before the Lord's Supper.
That limit matters pastorally. If you abstain before communion, this text does not require it, and if you eat, this text does not condemn you. Neither choice should become a measure of another person's devotion, and no one should be pressed about eating or skipping a meal. What stays central is the Father who sees in secret. Matthew 6:18 says, “so that you are not seen by men to be fasting, but by your Father who is in secret, and your Father, who sees in secret, will reward you.” Hidden devotion is directed to him, not to an audience.
What Jesus says about fasting and the Father who sees
In Matthew 6:16–18 Jesus speaks as the one who has authority to interpret Israel's covenant devotion, not as a rabbi offering tips. He assumes his disciples will fast, just as he assumes they will give and pray, but he strips the practice of its audience. The hypocrites disfigure their faces so that others notice. Jesus says to anoint the head and wash the face, the ordinary marks of normal life, so that fasting stays between a person and God. The contrast is not between fasting and not fasting. It is between performing for people and living before the Father who sees in secret.
That phrase, the Father who sees in secret, carries the weight of the passage. Jesus is not promising that hidden devotion always produces visible results. He is saying that the reward of devotion is the Father himself, not the crowd's approval. Those who fast to be seen, he says, have received their reward already, and there is nothing left to come. This exposes something in every heart: we want to be noticed, and we will bend even good practices to get it. That is why the gospel is needed, not merely better religious technique. We cannot cure a heart that craves human praise by trying harder.
So this text points beyond itself to Christ, the one who did not seek the praise of men but pleased the Father, and who warned that those who chase human reward receive nothing more. Every reward the New Testament speaks of is tied to union with him, not to earned merit. That means this teaching must never become a new rule for measuring someone else's devotion. Do not turn it into pressure about eating or abstaining before communion. The Father who sees in secret is not a scorekeeper watching for technique. He is the Father who rewards his children in Christ, and that grace frees us to fast or to eat without performing for anyone.
What faithful response looks like when no one is watching
Jesus does not begin this teaching by forbidding fasting. He begins with a question about direction: who is this for? In 6:16 he describes people who disfigure their faces so that others will notice they are fasting, and he says plainly that they have their reward already. The practice itself is not condemned; the audience is the problem. So examine your own habit honestly. If the fast disappeared from view, would it still be worth doing? If no one knew you abstained before communion, would the day feel wasted? Jesus points to the Father who sees in secret, and he locates the reward there rather than in the admiration of a room.
If you come to the table, come with your conscience examined and your sins confessed. This passage presses honesty before the Father, not a performance for the people beside you. Notice that Jesus says nothing here about food as a condition for receiving communion. Fasting is a voluntary discipline you may take up quietly, as 6:17–18 describes, not a rule you impose on others and not a gate you build around the table. The one who sees in secret is the one you are answering to, and he already knows what you bring.
Guard against turning your own habits into a measure of someone else's devotion. The text gives no such measure, and it warns against practicing righteousness to be noticed. A believer who eats before communion and one who abstains may both be honoring the Lord; neither should sit in judgment over the other. All of this rests on grace already given in Christ, not on the rigor of your preparation. The Father's reward is promised to those who seek him in secret, but that promise is not a guarantee of health, success or any particular outcome in this life.
Biblical fidelity check
Read closely, Matthew 6:16–18 begins with when, not if, so Jesus assumes fasting happens without commanding it. The hypocrites are shown with sad and disfigured faces, staging deprivation so others notice. Against that, he tells the disciple to anoint the head and wash the face, ordinary grooming that hides rather than advertises the fast. The risk here is turning a passage about motive into a rule about food, or into a rule against fasting. Jesus never mentions communion, and the Father who sees in secret is the audience he sets for devotion.
The genuine disagreement is how far this principle reaches. Some readers value fasting as a voluntary discipline kept hidden; others tie it largely to the old covenant or particular occasions. Both agree Jesus targets performance, not the practice, and that later customs around communion are not taught here. The text forbids devotion done to be seen by men and makes no rule about eating before the Lord's Supper. What stays central is that the Father sees in secret and hidden devotion is aimed at him, not at onlookers.
Following the theme of Matthew 6:16-18 through Scripture
These themes continue in the surrounding teaching on treasure and reward, and in the wider Sermon on the Mount. For further study, see Jesus Denounces Hypocrisy in Matthew 23 on Matthew 6:19–21, Matthew 1: Genealogy and Birth of Jesus on fasting as a voluntary devotion, Matthew 10: Jesus Sends the Twelve with Authority on preparing to receive communion, and Matthew 12: Lord of the Sabbath and Sign of Jonah on secrecy and reward in the Sermon on the Mount.
Frequently asked questions
Does the Bible require fasting before taking communion?
No, Matthew 6:16–18 gives no such requirement, and the passage says nothing about communion. Jesus addresses fasting as a private devotion directed to the Father, not as a preparation ritual for a meal or a sacrament. Nothing in these verses makes eating or abstaining a condition for coming to the table. A church may encourage fasting as a voluntary devotion, but this text cannot be used to turn it into a requirement, and it should never be used to pressure anyone about food.
What did Jesus mean by saying when you fast rather than if you fast?
Jesus assumes his disciples will fast at times, so he instructs them on how to do it rather than whether to do it. The wording treats fasting as an expected practice, yet it stops short of a command with a penalty attached. He does not set a schedule, a frequency, or a required occasion. The emphasis falls on the manner: fasting is directed to the Father, not staged for an audience. That leaves room for genuine freedom about when and whether a person fasts.
Is it wrong to let others know that I am fasting?
Jesus warns against fasting in order to be seen by men, and that warning is the heart of Matthew 6:16–18. He describes people who disfigure their faces so others will notice their fasting, and he says they have received their reward. His instruction is to anoint your head and wash your face, the ordinary grooming of the day, so that the fast is not obvious to onlookers. The problem is display aimed at human approval, not the simple fact that someone close to you may know you are fasting. Honest practical situations differ, and the passage searches the motive rather than imposing a rule about secrecy.
