Whose God Is Their Appetite

“For many walk, of whom I often told you, and now tell you even weeping, that they are enemies of the cross of Christ, whose end is destruction, whose god is their appetite, and whose glory is in their shame, who set their minds on earthly things.” — Philippians 3:18-19 (NASB)

The morning that didn’t go well

Consider a small scene. A man wakes up, walks to the kitchen, and finds that the coffee is wrong. Maybe the beans ran out and what is on the counter is a brand he tolerates rather than the one he loves. Maybe he is traveling, and the hotel’s machine is what is on offer. Maybe his wife made it the way she likes it, which is not the way he likes it. Nothing has gone catastrophically wrong: there is coffee, he is not in pain, and no one has wronged him in any way a court would recognize. And yet the morning is now slightly darker than it was a moment ago, and something in him has gone quiet and cold in a way that the people who live with him can read on his face within ninety seconds of his entering the room.

Most of us would not call this gluttony. We would call it being particular, or having standards, or being tired, or simply not being a morning person. We have a thousand small accommodations for what is actually happening in this scene, and almost none of them name it for what it is. Gluttony is a sin, and its first defense is that it does not look like one.

You might think gluttony is about food, and it is, but only as a medium. The matter underneath is governance, and the question the wrong-coffee morning is actually asking is what just sat down on the throne of the inner life and started giving orders, and why everyone in the house immediately knew to obey it.

Paul names it

Paul wrote Philippians from prison, and so the warning about appetite is not theorizing from a position of comfortable abundance. It comes from genuine material constraint, from a man uncertain of his future, and yet writing with unusual joy, because the letter that contains the warning about those whose god is their appetite is the same letter that says, “I have learned, in whatever state I am, to be content” (4:11). Paul’s contentment, in other words, is not native to his constitution but a learned practice, formed through both abundance and need, through being filled and being hungry. When he names the disorder of appetite as the governing characteristic of those who walk as enemies of the cross, he speaks as someone who has lived the alternative.

The Greek word Paul uses for appetite in 3:19 is koilia. It refers literally to the belly, but in the New Testament’s wider usage it points past digestion to the inner person, the deep seat of desire and wanting. Paul is not making a specific charge about eating habits. He is naming what governs. Koilia has taken the place that God should occupy, so that interior wanting now initiates, interior wanting evaluates, and interior wanting decides what is acceptable and what is not. The “enemies of the cross” in his framing are not necessarily people of obvious indulgence. They are people whose deep wanting has been seated on a throne it was never meant to occupy.

Philippi was a Roman colony (Acts 16:12), and Roman colonial culture had elevated the table into a theater, where what you ate, how it was prepared, in what order it was served, on what kind of couch you reclined while eating it, and with whom you ate were all carefully managed performances of status. Paul, in other words, is writing into a culture that had already trained its citizens to invest appetite-preference with social weight, and his warning is not primarily a comment on Roman banqueting but a reorientation of the governing principle: not the koilia, but the Father.

The cross is the interpretive center of the passage, though the reason is not obvious at first. Why should the cross be the relevant counter-image to disordered appetite specifically? Because the cross is the supreme act of appetite-submission in human history: the Son of God, who had every divine right to comfort, ease, and the satisfaction of his desires, chose voluntary self-emptying, accepted total deprivation, and endured suffering in obedience to the Father. To let appetite be your god, then, is to walk by the exact opposite logic, arranging your life around the satisfaction of desire rather than the submission of desire, and these two orientations are not merely different but incompatible. That is why Paul does not call the appetite-governed person weak or undisciplined. He calls them enemies of the cross.

Gluttony does not look like itself

C.S. Lewis saw the disguise clearly. In The Screwtape Letters, the senior demon Screwtape instructs his nephew in the cultivation of a particular glutton who presents no visible excess whatsoever: a woman who eats small amounts and asks for very little, but who insists that the little she asks for be exactly right, and who, when it is not, the tea at the wrong temperature, the toast not as expected, grows cold toward whoever prepared it until her preference has been satisfied. Lewis’s point is that the demons have achieved the full operation of gluttony while keeping all of its appearances safely hidden: she will never be accused of it, and can at any moment point to how little she eats, and yet the fruit of the disorder is entirely real, present in the domestic tyranny she presides over, the bondage of those who serve her, and the emotional volatility that descends whenever appetite is crossed.

You might think gluttony is about volume, but the Christian tradition has long distinguished several different ways the koilia can take the throne, and only one of them is about quantity. A person can eat too soon, before the proper time, or too daintily, requiring exact preparation. They can eat too much, but they can also eat too eagerly, with the soul leaning forward into the food. And they can eat too fussily, requiring food to be precisely as the appetite has decided it must be. The categories map cleanly onto familiar lives: Lewis’s tea-cup woman, the wrong-coffee morning, the man who cannot wait to eat, the classic visible glutton. Five faces of the same disorder, one koilia, one throne.

This is why gluttony is the most respectable of sins in the cultures that produce it most efficiently. The volume version can be seen, but the others wear the clothing of refinement, of taste, of discernment, of being a person with standards, and they can coexist quite happily with a careful figure, a healthy lifestyle, and a social media presence that no one would describe as indulgent. The fussy version in particular is at home in serious Christian households, where it is often praised as good stewardship or careful attention to the body, but the throne is still occupied. Only the décor has changed.

The arc

The wanting begins as preference, and there is nothing wrong with preference. A person knows how they like their coffee, prefers a certain kind of bread, finds one cuisine easier on the stomach than another, and this is appetite reporting its experience, which is appropriate. But preference, left alone with the koilia long enough, rarely stays preference: it hardens.

Preference becomes need. The vocabulary shifts internally, from “this is a thing I like” to “this is a thing I need,” and the category change is morally loaded, because a denied need carries the weight of injustice in a way that a denied preference does not. Once a preference has been reclassified as a need, its frustration is no longer a small inconvenience but something done to me.

Need becomes master. The appetite, now installed as a need, begins to determine the emotional weather of the day, so that its satisfaction produces stability and its frustration produces a darkening that everyone in the room can read. Others learn this, and they learn to manage the appetite carefully, to anticipate it, to absorb it when it is crossed, and the household quietly organizes itself around the koilia.

Master becomes slave. The person cannot function without the satisfaction, and the appetite, not the person, now makes the schedule, which is what Romans 16:18 names with unsparing clarity when it speaks of those who are “slaves, not of our Lord Christ but of their own appetites.”

This arc is not theoretical. Scripture shows it happening, in different settings and different centuries, with the same shape every time.

In the wilderness, Israel has food (God is feeding them supernaturally, daily, in the middle of a desert), and yet they stand at the doors of their tents and weep, remembering Egypt: the fish, the cucumbers, the melons, the leeks, the onions, the garlic. They cannot accept the manna. “But now our appetite is gone. There is nothing at all to look at except this manna” (Num 11:6, NASB). You might think this scene is about ingratitude, and it is, but the deeper thing under the ingratitude is that the koilia of the wilderness generation has been given veto power over the goodness of God. They are not being denied food. They are being denied a specific food, and the specificity has become governing. The chapter does not let the scene rest gently, either: God gives them what they asked for, and the quail comes, and with it judgment: “while the meat was still between their teeth, before it was chewed, the anger of the LORD was kindled against the people” (Num 11:33). The wilderness instance of the arc ends with the master killing its slaves.

In Genesis 25, Esau comes in from the field exhausted, finds Jacob with a pot of stew, and trades his birthright for a bowl, a trade that Hebrews 12:16 will not let us remember gently: “no godless person like Esau, who sold his own birthright for a single meal.” You might think this is a story about a tired man making a foolish trade, and it is, but Hebrews has a sharper diagnosis. It is a story about the koilia in its terminal form, where the appetite has become so absolute that the future is sold to feed the moment. Esau looks reasonable in the scene: he is hungry, he is tired, the soup is right there. The disguise is so thorough that the trade only looks like what it is in retrospect.

In 1 Samuel 2, Eli’s sons are priests, and they are also, the text tells us, men who have made themselves “fat with the choicest of every offering” of Israel, v.29, using their priestly access to take the best meat before it is properly offered and threatening worshipers with violence if they object. The koilia has put on the priestly ephod, and the appetite is being served from the altar itself.

And then in Daniel 5, Belshazzar throws a feast for a thousand of his lords, drinks wine from the sacred vessels of the Jerusalem temple, and is dead before morning. This is the political instance of the arc, appetite enthroned at the scale of an empire and ending in the same place the wilderness ended.

Daniel 1, by contrast, is the counter-instance. The young Daniel and his friends, given access to the king’s delicacies, ask instead for vegetables and water, not refusing food but refusing to let the king’s table train their koilia, and the text is careful to note that at the end of the testing period they were healthier than the others. This is the arc working backwards: a deliberate, small refusal to let preference begin its hardening.

The instances differ in setting, wilderness, field, sanctuary, palace, exile, and in the social standing of the people involved, but the arc is the same.

The respectable modern form

Most readers of this essay will not be Belshazzar, and most will not be Eli’s sons. We live at the fussy, refined end of the spectrum, in a culture that has trained the koilia with unprecedented thoroughness and rewards us for the result.

Consider what happens to a person who, for years, drinks coffee prepared exactly the way they have determined it should be prepared, with the bean, the grind, the water temperature, and the ratio all calibrated to a precise specification of their own design. Nothing about this is sinful in itself. Attention to craft can be a form of gratitude for the created world. But the appetite is being educated all the same: each morning the koilia is trained a little further toward exact satisfaction, until eventually the absence of exact satisfaction does not register as a minor variation but as deprivation. The trained appetite has lost the ability to read the world correctly, so that a perfectly drinkable cup of coffee can now be experienced as a wrong, and the wrong produces a real emotional event. This is exactly what Proverbs 23:3 has in mind when it warns against the deceptiveness of delicacies, mat’ammim, carefully prepared, precisely seasoned food: refinement itself trains the appetite into specificity and strength without the person noticing, until the absence of the delicacy becomes genuinely intolerable.

The restaurant case is a more visible version of the same thing. There is a legitimate range of response to incorrect food service, particularly when genuine medical or dietary needs are involved. But the person who becomes cold, punitive, or persistently darkened by a minor food error (a wrong preparation, an unasked-for substitution, something that falls short of expectation but remains perfectly edible) has revealed where appetite sits. The response is disproportionate because the appetite has accumulated significance the meal cannot bear.

You might think developed-world abundance is a neutral fact about modern life, and that the discipleship problem lies elsewhere, but it is not neutral. It is a formation regime. Several generations have now been raised inside an unprecedented availability of exact satisfaction (the right food at the right time, prepared in increasingly specific ways, delivered with friction approaching zero), and the ordinary rhythms of life that once required the koilia to adapt (eating what was served, eating what was available, eating simply) have become genuinely difficult for many of us, not because we are weak but because we have been trained otherwise. The trained appetite now reads ordinary life as deprivation, and the felt deprivation produces a real moral grievance that has no real moral object. We feel wronged by Tuesday.

One distinction is necessary before going further: medical dietary requirements are not gluttony. Celiac, food allergies, sensory processing conditions, and eating disorders are real and require real care, and the diagnostic question for gluttony is not whether you have food requirements, everyone does, but what happens to your mood, your face, and the people near you when the koilia is crossed.

Why the cross

Gluttony, at its root, is a sin of governance: a question about who occupies the throne of the inner life. Every other definition reduces to this one. The Christian claim about the cross is that it is the place where the question of governance was answered, definitively, in a human being who did what we cannot do.

Matthew 4 is the christological center of the issue. Jesus has fasted forty days and forty nights, and the text means it: he is hungry in a way most modern readers have never been, not in the diluted sense of having skipped lunch, but in the condition of sustained physical depletion that begins to take a body apart. You might think Christ’s wilderness refusal was easier than ours because he was God, but it was harder. Satan’s approach is precisely calibrated to a body that is failing: “If You are the Son of God, command that these stones become bread” (Matt 4:3). The temptation does not ask Jesus to deny his identity or to do anything obviously wicked. It asks him to use his own power to satisfy a legitimate physical appetite at a moment when the need is real, the power is available, and the satisfaction would be appropriate by every standard the koilia knows. And he refuses: “Man shall not live on bread alone, but on every word that proceeds out of the mouth of God” (Matt 4:4). He does not deny the hunger or pretend the bread would not satisfy. He redirects the governing principle, away from the koilia and toward the Father’s word.

Where Adam took the fruit, Christ refused the bread.

The same movement appears at the extreme limit in Gethsemane: “My Father, if it is possible, let this cup pass from Me; yet not as I will, but as You will” (Matt 26:39). Christ has a will, and he has a genuine desire to be spared what is coming, a desire he states plainly, without performing indifference or offering a face of Stoic calm that would be dishonest about what he faces, and then he submits that desire to the Father’s, the cup does not pass, and he drinks it.

Where Israel demanded the quail, Christ accepted the cup.

Paul has already shown, one chapter earlier, what the opposite of koilia-rule looks like. Christ “did not regard equality with God a thing to be grasped, but emptied Himself, taking the form of a bond-servant … He humbled Himself by becoming obedient to the point of death, even death on a cross” (Phil 2:6-8), and the warning about those whose god is their appetite arrives in the very next chapter. He who made every good thing and had every right to its enjoyment took the path of total deprivation, and his submission is not offered merely as an example for us to imitate but as the substitutionary act that makes the reordering of appetite possible for those who trust him. The cross, in other words, is not first a model but a transaction, in which his perfect appetite-submission is counted as ours so that the Spirit can then do in us what resolution alone cannot.

Augustine knew this from the inside. In Book X of the Confessions, examining the temptations that remained even after his conversion, he turned to the daily problem of eating and wrote with unusual care, recognizing that eating is necessary and that the Creator gave pleasure to attend the necessity so that the necessity would be served. But he noticed something subtler underneath, which is that pleasure tends to outrun necessity. The hand goes on eating after the body has been fed, and the morning’s coffee does more emotional work than a cup of coffee was made to do. Augustine confessed that he could rarely identify the exact moment when necessity had been satisfied and pleasure had begun to lead, and he asked whom among the saints could be found who never crossed that line. In other words, this is not a sin one defeats by resolution but a sin one is rescued from.

Romans 8:13 names the method of the rescue: “if by the Spirit you are putting to death the deeds of the body, you will live.” The Spirit is the active agent, and mortification of disordered appetite is not willpower but the application, by the Spirit, of what Christ purchased. There are practices that participate in this work, but the practices are not themselves the engine.

The redeemed table

It would be possible to read everything above as a verdict against pleasure, and it would be a misreading. The gospel does not call Christians to indifference toward the table. Christ ate fish on the shore after the resurrection (John 21:13), made wine at a wedding when the wine ran out, fed thousands, and received hospitality in homes throughout his ministry, often the homes of people his religious culture considered the wrong company, and he was accused, by the leaders of that culture, of being “a gluttonous man and a drunkard” (Matt 11:19), an accusation that could not have stuck unless he was visibly, generously enjoying meals.

You might think the answer to gluttony is restraint, but it is not, exactly. The opposite of gluttony in scripture is not abstinence but ordered feasting, because created appetite is a gift and so is food, and the pleasures of the table are genuine goods given by a generous Creator. The redemption of appetite does not look like joyless indifference to those gifts. It looks like a person who can receive them with gratitude and surrender them without resentment, who can be governed, in both feast and fasting, by every word that proceeds from the mouth of God.

A few practices participate in this redemption, because diagnosis without practice tends to produce only guilt.

Fasting is the deliberate retraining of the koilia. It is not a hunger strike against the body, but a small, regular refusal to let appetite decide the schedule. Christ assumed his disciples would fast, saying “whenever you fast” (Matt 6:16) rather than “if,” and the practice is not magic but the simple act of telling the koilia, in the body itself, that it does not sit on the throne.

The Lord’s Supper is the meal where the redeemed table is enacted: the community eats together, eats what is given, eats the same thing, and eats in the order set by another. 1 Corinthians 11 records what happened when the Corinthians let the koilia govern even there (the wealthy ate ahead, the poor went hungry, the meal became a performance of status), and Paul names the practice as a judgment on itself. The Supper, rightly received, is the koilia’s steady weekly demotion.

Saying grace is small in the way that turns out not to be small at all. It is the brief, regular act of refusing to receive food as a right and receiving it as a gift, because the koilia cannot easily occupy a throne that gratitude has gotten to first.

Hospitality and eating with the poor are the social application of the same logic. Basil and Chrysostom both wrote, with some force, that gluttony is theft from the hungry, that the bread one takes beyond need is the bread one denies to a person whose need is real, and the early church took this seriously enough that the agape meal became the practical answer to it. The table where the rich and the poor eat the same food is the table where the koilia’s social usefulness collapses.

A few distinctions belong near these practices, because the koilia is endlessly clever about wearing the clothes of its opposite.

Religious dietary scruple is not gospel-shaped appetite. The Pharisees were extraordinary at restraint, but they were not free.

Asceticism is not mortification, either: one is willpower performed against the body, the other is the Spirit’s slow work in the inner person, and the two can produce identical-looking behavior while proceeding from opposite engines.

Foodie discernment is not gratitude, though they can look alike at the table and be opposite at the heart. Gratitude can receive a wrong cup of coffee, while discernment, once it has become a master, cannot.

And fasting from food is not fasting of the heart, as Isaiah 58 makes plain. A person can perform the practice without ever doing what the practice was for.

Diagnostic questions

The questions are not for accusation but for noticing.

What happens to your mood when a specific food or drink preference is not met? Passing disappointment is not diagnostic of much, but a settled resentment, a mood that colors the next hour, or a coldness toward the person who failed to provide correctly: these indicate that appetite has been given governing authority it should not have.

Whose day do you make harder when your preferences are not met? Gluttony of delicacy is rarely a private sin. If a denied preference consistently produces an emotional climate that other people in the household or in a restaurant have to manage carefully, the koilia has grown beyond what is appropriate.

What disruption to your eating or routine have you been unable to receive gracefully in the past year? Not merely tolerate, but receive with grace. The question is whether the person can absorb a disruption without internal accusation toward whoever disrupted it, and without the silent narrative that something was owed and not delivered.

What appetite do you defend most strenuously as a need rather than a preference? When a preference is reclassified internally as a need, its frustration carries the weight of genuine injustice. So if a particular appetite has been given the standing of a need, and its denial feels like a real wrong rather than a minor inconvenience, that appetite has been seated higher than it should sit.

The supper at the end

Scripture closes with a meal. Not a fast, but a wedding feast, the marriage supper of the Lamb (Rev 19:9), where the redeemed will eat together and the meal will be the one the Father has prepared, and it will be enough.

The Christian story, in other words, does not train its people away from appetite. It trains appetite toward its true object. “Blessed are those who hunger and thirst for righteousness, for they shall be satisfied” (Matt 5:6). In other words, hunger is not the problem, but hunger pointed elsewhere is. The koilia is being trained, all the way through this life, to find its satisfaction in the right place, so that when the table at the end is finally set, the wanting will run to it without confusion.

The signposts of that training are scattered through the Gospels. Two travelers on the road to Emmaus walk with a stranger they do not recognize, invite him to stay for the evening, sit down at a table with him, and know him in the breaking of the bread (Luke 24:30-31). And disciples who have been fishing all night come to shore in the dawn to find a fire already burning and fish already cooking, and the Risen Christ says, “Come and have breakfast” (John 21:12). The risen life, in both cases, looks like a meal received from him.

Hebrews 2:18 is the practical comfort underneath all of this: “since He Himself was tempted in that which He has suffered, He is able to come to the aid of those who are tempted.” He knows what it is to have the appetite speak and the will be tested at the point of genuine hunger, and he succeeded where we fail, so that his success might be counted as ours, and his Spirit might do in us what we cannot accomplish by resolution alone.

Appetite is a gift, and so is food, and the wedding supper at the end of all things is a meal, not a fast. The redemption of the koilia between now and then is the slow training of a person whose wanting can be received and surrendered without injury to anyone, who can be governed, in both feast and fasting, by every word that proceeds from the mouth of God, so that when the table is finally set, the wanting runs to it without confusion, as it was prepared, all along, to do.