-The BIBLICAL Definition Of Lust

The word "lust" has been redefined in our modern day usage. The Bible defines lust in a different way. So to answer the question: Is it a sin to lust? It is a sin to lust after something that belongs to someone else according to how the Bible defines lust. It is not a sin to lust according to how lust is defined today in modern times. Today lust is defined as having sexual feelings toward someone, to see someone as visually appealing and to perhaps have fantasy like thoughts about that person. The Bible defines lust as the pursuit to take possession of something that belongs to someone else, or simply to covet something that belongs to someone else. So if that something is something that does not belong to you and belongs to someone else, then that is lusting in ways that God condemns. You have now began to carry out a plan to actually commit the crime of stealing. Lust is synonymous with the word covet in the Bible. It could be in a sexual context, but not always, and we shouldn't be so quick to assume such a thing. 

"What shall we say then? Is the law sin? God forbid. Nay, I had not known sin, but by the law: for I had not known lust, except the law had said, Thou shalt not covet." Romans 7:8 (This verse tells us plainly that to lust is the same thing as to covet according to how the Bible defines lust. Paul would not have know what lust was had the law not stated not to covet. That is as direct of a connection and parallel as you can get for the words "lust" and "covet" being the same exact thing. To make "lust" anything more than "covet" is to add to God's word. So let's see how the Bible defines covet in order to see how the Bible defines lust.)

"Thou shalt not covet thy neighbour's house, thou shalt not covet thy neighbour's wife, nor his manservant, nor his maidservant, nor his ox, nor his ass, nor any thing that is thy neighbour's." Exodus 20:17 (So to covet or lust is not just in a sexual sense. It is a property rights issue. Does this mean that we can't enjoy the beauty of our neighbors huge mansion? Does it mean we can't fantasize about what it would be like to live inside a mansion like that? No it does not. I suppose we could even be tempted to possess our neighbors desirable house if we had the opportunity to do so. But we should never make the decision to pursue doing so, as it is not ours to have. And to make the decision to pursue possession of our neighbors house would be the sin of covetousness, which is the same thing as lust. The same principles apply to our neighbors desirable wife.)

You can lust after your neighbors steak that you smell on the other side of the fence by pursuing a plan to take possession of it. Maybe you are waiting patiently on the side of the house to wait until your neighbor goes in the house for you to go snatch it. Now if the neighbor never goes in the house and you never take possession of the steak then you did not commit the crime of stealing, but you did lust in your heart. That is coveting after your neighbor's steak that is not yours to have. It was your intent to steal the steak and possess it even though that action never played out. Just as today attempted murder is just as bad as murder because the intent of the heart was still the same. But you are perfectly within your rights to appreciate the visual of your neighbor's sizzling steak as well as enjoy the smell of it. You may even imagine in your head the joy of what it would be like to eat and taste your neighbor's steak. That does not mean you are trying, intending, or pursuing to possess his steak. That steak is his not yours to take. You may even have thoughts of taking it. That is temptation, but you never made the decision to pursue that endeavor, therefore you did not lust or covet.

The Most Abused Passage In All Of Scripture

"But I say to you, Everyone looking at a woman to lust after her has already committed adultery with her in his heart." Matthew 5:28 (This verse is NOT referencing men having sexual thoughts and feelings toward women as almost everyone teaches. Jesus is saying not to look at another man's wife with covetousness. The definition of the word "covet" is outlined above. The decision to actively pursue another man's wife is not the act of adultery itself, but of covetousness. But you have committed the act in your heart which is evil. This is the cause of the sin of adultery. Jesus is saying to look at the root cause of the sin, which is in man's heart.)

The word "woman" MUST be translated as "wife" as the same greek word used is used for both "woman" and "wife." It can not be properly translated "woman" as adultery can only apply to a married woman, NEVER a single woman. And every man has sexual thoughts about his wife before they marry, therefore the word "woman" doesn't make sense here. Having sexual thoughts toward your future spouse is by God's design so that man and woman would marry and have children. And it is lawful to covet a single woman, as all men do their future wives. But it is never ok to covet a married woman, as Jesus is explaining in the verse.

So Matthew 5:28 would be most clearly understood as: 
"But I say to you, Anyone who makes the decision to possess someone else's wife as their own has already committed adultery with her in his heart."

Also notice the following verses: 
If your right eye causes you to stumble, gouge it out and throw it away. It is better for you to lose one part of your body than for your whole body to be thrown into hell. And if your right hand causes you to stumble, cut it off and throw it away. It is better for you to lose one part of your body than for your whole body to go into hell. Matt. 5:29-30 (The eye and hand is the same reference being made in many other scriptures that reference the hand and forehead. This is speaking to your decisions of your mind and the actions of your hands. So to covet/lust requires a decision followed by an action. Today's modern definition of lust only requires a thought, and that is a false teaching.)

This verse in Matthew 5 gets thrown out all too often out of context. We use the modern definition of lust and cast heavy burdens on mankind with all kinds of guilt and shame. Do not underestimate the damage and affect that this interpretation can have on a person. This causes God's people to not understand where the line is between temptation and sin, therefore since people feel like they have already crossed the line, and can't stop themselves from doing so, they may as well go all the way and do the real thing. Now God's people are actually sinning against God with their own bodies. See how Satan tricks you? Satan uses this on many to cause all kinds of guilt, shame, and misery. This causes men to run and hide from God when there is no need to feel that shame and guilt. This is a big tool in Satan's toolbox to keep people from pursuing God. It need not be anymore.

Also note that lust is also used in positive ways in the Bible as well. So lust is a neutral word. The point is whether you are lusting or coveting after something that is eligible to be had or whether you are lusting or coveting after something that belongs to someone else. That is what determines whether lust is good or bad in how the Bible defines it.