*If new to this series, please see the introduction.*

You heard it was said, ‘Do not commit adultery,’ but I say to you that everyone who looks at a woman/wife in order to covet her has already committed adultery with her in his heart. (Matthew 5:27–28)

Standard Interpretation(s)



The ordinary interpretation of this passage is that lust is equivalent to adultery; that is, if a man sexually desires a woman, he has already committed adultery with her in God’s eyes. This interpretation is reflected in the following translations:

“You have heard that it was said, ‘Do not commit adultery.’ But I tell you that anyone who looks at a woman lustfully has already committed adultery with her in his heart.” (NIV) “You have heard that it was said, ‘YOU SHALL NOT COMMIT ADULTERY’; but I say to you that everyone who looks at a woman with lust for her has already committed adultery with her in his heart.” (NASB) “You have heard the commandment that says, ‘You must not commit adultery.’ But I say, anyone who even looks at a woman with lust has already committed adultery with her in his heart.” (NLT) “You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman with lust has already committed adultery with her in his heart.” (NRSV)

Many churches (especially within Evangelical circles), emphasize this verse to men and (especially) adolescent boys, warning that if they so much as think of a woman in a sexual manner, they’ve already sinned, that they’ve already effectively done the deed with her. Such an interpretation often works hand-in-glove with the common idea that Jesus “intensified” the Law in the Sermon on the Mount, setting a higher standard in order to show that no person could actually live up to God’s standards, showing that a person could only be saved by recognizing the impossibility of righteousness and then receiving forgiveness (a complete misinterpretation of the Sermon on the Mount I will address at another time). So the common teaching is: lust (that is, sexual lust) is absolutely evil—equivalent, even, to the physical act of sexual sin.

Another key aspect of nearly all the common misinterpretations of this verse is a specific (mistaken) definition of the word “lust.” Specifically, many readers understand “lust” as specifically denoting misplaced or overly robust libido. For example, as one recent conversation partner explained to me, “I take lust to mean wanting something more than you should in an unhealthy way.”

Despite its popularity, this interpretation is imprecise, even flat wrong, and leads to surprisingly harmful consequences, making this verse a great candidate to start this series.

Lust or Covet?

The first thing to understand in this passage (and in the Sermon on the Mount in general) is that Jesus is in no way intensifying the Law here, nor is he really saying anything new. What’s that, you say? The Law doesn’t forbid lusting after a woman, so Jesus has obviously turned things up to eleven by doing so?

Well, as it turns out, the Greek word usually translated “lust” in this passage (ἐπιθυμέω; epithumeô) is precisely the word for “covet” (Hebrew חמד) in the Tenth Command in the Septuagint (Greek Old Testament), which says:

You will not covet your neighbor’s wife. You will not covet your neighbors house or his field or his male servant or his female servant or his ox or his donkey or any animal which is your neighbor’s. (Ex 20:17 LXX)

Looks pretty familiar, doesn’t it? In fact, it’s essentially identical; since there’s no distinction between the words “wife” and “woman” in Greek, the word translated “wife” here is the same that is translated “woman” in Matthew (both English words translate the same Greek word γύνη; gynē).

It turns out that Jesus isn’t saying anything new at all in Matthew 5:27–28. Instead, he directly cites one of the Ten Commands to remind his audience that the Law not only prohibits adultery, it prohibits coveting with the same severity. This is not an intensification of the Law; it’s a reminder of what the Law already says. In addition, Jesus gives no indication that he regards the Law as too difficult to keep—he not only assumes that his followers can follow his interpretation of the Torah but commands them to do so.

Now that it’s clear that Jesus isn’t saying something specifically new here but is instead calling attention to the Tenth Command, the next order of business is to understand the tenth command and the concept of “coveting.” The first thing to understand is that when the Hebrew חמד or Greek ἐπιθυμέω are used as verbs in the OT, it denotes desire directed at obtaining the specific object in question and not merely the existence of the desire itself.

Strikingly, the nominal (noun-form) concept of “lust” or “desire” (even the sexual variety) is nowhere forbidden in Scripture, nor is it equated with sin—only the potential to sin: “Each one is tempted when he is carried away and enticed by his own lust. Then, when lust has conceived, it gives birth to sin. And when sin is completed, it brings forth death” (James 1:14–15). Note that James clearly distinguishes between “lust” (that is, desire) at the stage of temptation and “sin,” which is the actual commission of an act.

In keeping with this distinction, Tenth Command specifically forbids the action of coveting (hence the verbal form), perhaps best understood as forbidding fixing one’s desire upon obtaining something that is not rightfully one’s own. (A fuller way to understand “coveting” is analogous to the modern legal concept of “attempted” lawbreaking, but that’s a subject for for another post.)

To understand these distinctions more fully, it is helpful to understand the background for how the term typically translated “lust” (Gk. ἐπιθυμία; epithumia) was understood in the New Testament and the culture of that period.

Drives and Desires

One misconception that should immediately be eliminated is that “lust” (ἐπιθυμία) is a specifically sexual term. In fact, the word simply refers to a strong, passionate desire, used either of sexual desire or of a strong desire for something non-sexual. Stepping back further, in Platonic thought, ἐπιθυμία (epithumia) is the lowest part of the human soul—representing the connection of the soul with the fleshy, bodily part of the person.

Background: The Tripartite Soul

In the world of Greek philosophy, human thought and action were often explained by metaphorically dividing the “soul” (or life-force) into three parts, each of which is personified as a separate agent in itself.

The highest part is the “mind,” “intellect,” or “reason” (νοῦς, nous; sometimes λόγος, logos), which is the part associated with thinking, theorizing, believing, meditating, contemplating, etc. This part is concerned with things like truth and knowledge and the highest aspects of human life. This part is represented in the human body by the head, which is the highest part of the body, stretching towards the heavens. In Plato’s Republic, this part is identified with the philosopher/rulers who are the natural and proper leaders of the ideal city-state, while it is identified with the world creator “demiurge” in the Timaeus.

As mentioned above, the lowest part (ἐπιθυμία, epithumia; note that this is the same root as the word for “lust”) is the irrational seat of appetite, the source of human drives for pleasure, including desires for food, drink, sex, and pleasure. Socrates calls this part of the soul “money loving,” since money is typically required to satisfy all its primary appetites. This seat of the appetites was also referred to as the “flesh” in the ancient world (σάρξ; sarx). Because this part of the soul is non-rational, it is unlimited in terms of what it desires—necessary, frivolous, or even unlawful/illegal/sinful. Take food, for example. When a person is hungry, it makes no difference if the barbecue smell is coming from the neighbor’s house—it still stimulates the desire for that food. The desire for food is necessary inasmuch as the body will die without food, but the appetite does not simply restrict itself to what is necessary.

Instead, a person may desire extremely expensive food (unnecessary) or, in extreme cases, may desire to eat something improper (i.e. a child may consume his feces or an adult may suddenly desire to eat a child). Since it is prone to run amok, the appetite part of the soul must be governed by the higher parts of the soul to keep it in check. This part is represented by the lower parts of the abdomen (including the genitals) on the human body, while it is identified with the merchant/craftsman (money-making) class in the Republic. In Parmenides’ charioteer analogy, this part is likened to a wild stallion, powerful but undisciplined.

The middle part of the soul is the “spirited” or “emotional” part of the soul (θύμος, thumos; a word often denoting “heart” in Greek), the mediator between the higher and lower parts of the soul. This part is the seat of the will and courage and can be shaped through education and training. It is represented by the chest/heart area on the body and the warrior/soldier class in the Republic.

If a person is well-ordered, these parts work together in a manner likened to a harmony of three musical notes, each necessary to the song. In Parmenides’ charioteer analogy, the mind governs the other two as a charioteer, with the “spirited” will as the lead horse and the appetites as the second horse, steered by the union of the higher two natures.

On the other hand, the danger is that the appetites will gain the “spirited” part as an accomplice and overpower the will, leading to reckless action. Plato thus sees it as critical that the mind retains the allegiance of the will, giving it direction and controlling the appetites.

So to summarize: the presence of “lust” or “desire” is an assumed part of each human person—deriving from God-given bodily desires that are amoral in themselves, neither inherently sinful nor entirely depraved. As such the presence of such “lusts” is in no way sinful; it is simply a part of being an embodied person. But directing these desires towards taking, obtaining, or enjoying what is not lawful is forbidden—that action (itself an act of the will) is forbidden by the Tenth Command and is sin.

Back to Matthew 5:27–28

Now that we’ve established a bit of the history of the key term in question, we can return to Jesus’ saying in Matthew with a little better context. By now we should understand that, in contrast to the English term “lust,” which has come to be a pretty much entirely negative term—which is why it’s so amusing to say, “I’ve been lusting for this pastry all morning”—the Greek term (though having a somewhat negative tint) is not always negative in the same way, instead being indicative of strong urges or drives, which the New Testament does not condemn in themselves.

Jesus is even able to use the word of himself:

“And He said to them, ‘I have lusted [ἐπιθυμέω] to eat this Passover with you before I suffer!'” (Luke 22:15)

Similarly, other non-negative uses of the word:

“For truly I say to you that many prophets and righteous men lusted [ἐπιθυμέω] to see what you see, and did not see it, and to hear what you hear, and did not hear it.” (Matt 13:17) “And [the prodigal] lusted [ἐπιθυμέω] to fill his stomach with the pods that the swine were eating, and no one was giving anything to him.” (Luke 15:16) “… and lusting [ἐπιθυμέω] to be fed with the crumbs which were falling from the rich man’s table; besides, even the dogs were coming and licking his sores.” (Luke 16:21)

Again, I am not to saying that there was never a negative connotation to ἐπιθυμέω/ἐπιθυμία when used in Greek. But it is critical that we make the distinction between a condemnation of desire and a prohibition against coveting forbidden things, including one’s neighbor’s wife. Now we’re finally ready to look at the verse itself.

The Grammar of Matthew 5:27–28

The other major mistake in the interpretation of this verse (and many translations, as shown above) involves misconstruing the grammar. The Greek does not say, “look at a woman with lust” or “look at a woman lustfully,” as though it were describing the manner of looking. On the contrary, Matthew uses a grammatical construction here that combines the preposition πρὸς (pros, pronounced “pross”) with an articular infinitive in the accusative. Matthew uses this construction four other times, and each time it denotes the purpose of the action:

“Beware of practicing your righteousness before men in order to be noticed by them.” (Matt 6:1) “… First gather up the tares and bind them in bundles in order to burn them up ….” (Matt 13:30) “But they do all their deeds in order to be noticed by men; for they broaden their phylacteries and lengthen the tassels of their garments.” (Matt 23:5) “For when she poured this perfume on my body, she did it in order to prepare me for burial.” (Matt 26:12)

So it is clear that the grammar is reflecting purpose: “anyone who looks at a woman in order to covet her.” (“Covet” is preferable here in part because “covet” better reflects the intentionality reflected in the passage.) This is a critically important point; Jesus is not suggesting that any sexual thought or inclination towards a woman is sinful. Nor is he suggesting that such thoughts or attractions being triggered by a look are sinful. The look is not the problem (nor is the presence of a beautiful woman, which some of that day tended to blame as the real problem); no, these are assumed. What is remarkable (given the popular misinterpretation) is that Jesus likewise assumes the presence of sexual desire in the man as a given, and that sexual desire isn’t seen as the problem. Instead, Jesus addresses the matter of intent, of volition, the purpose of the look. The issue is not the appetite itself but how a man directs this natural appetite and inclination. (I’m reminded here of the old saying: If you’re a young man on a beach and a beautiful woman in a bikini walks past and you don’t notice, it’s not because you’re spiritual, it’s because you’re dead.)

This fits well within the immediate context; throughout this section of the Sermon on the Mount, Jesus is pointing out the root causes of the sins enumerated in the Law. Yes, adultery is a sin, but the sin has entered the heart the moment one determines to seek it out. The moment a man even looks at a woman for that purpose, adultery has already polluted the heart. This is the line between natural sexual attraction and the “coveting” prohibited by the Law: the Law forbids directing one’s desire towards that which is not lawful. Jesus does not condemn the desire but the action taken on the desire.

In modern terms, it’s the difference between seeing a woman and being attracted to her—a natural part of the God-created appetite and a good indicator that one is alive—and actually considering or seeking an illicit activity. In modern terms, Matt 5:27–28 could be paraphrased as follows: “Obviously, having extramarital sex is wrong, but the moment you decide to start down that path, adultery is already in your heart.”

Finally, Jesus does not say that the thought and the action are equivalent, as is often taught. The passage does not say, “Once you’ve thought it, it’s the same as actually having done it.” That very notion is absurd! Rather, Jesus says that adultery has been committed in the heart, that the will has already bent itself towards adultery. Again, the emphasis is on intent—that is, without the decision to move towards adultery, the act would never be committed. Therefore, Jesus says, deal with the primary problem of intention and adultery becomes a non-issue. As will be shown below, the suggestion that the thought and action are equivalent can cause much harm.

Why It Matters