Where does temptation end and sin begin, and was the temptation of Jesus genuine?

Question 6065.

Temptation and sin are not the same thing, and confusing them has done enormous damage to sensitive Christians. Many believers spend years apologising to God for being tempted, which is rather like apologising for having been shot at.

So where does the line fall? And if Jesus was tempted in every respect as we are, yet without sin, was His experience of temptation and sin genuine at all, given that He could not have fallen? Both questions deserve better answers than they usually get.

Temptation is not sin

Start with the plainest evidence. Jesus was tempted (Matthew 4:1-11), and Jesus never sinned (Hebrews 4:15). If temptation and sin were the same thing, that sentence would be a contradiction. The fact that Scripture asserts both without embarrassment settles the principle before we get to the details.

The Greek word group here is peirazo and the noun peirasmos, and both can mean testing as easily as enticing. God tests, and the devil tempts, and sometimes the same circumstance is described both ways. The word itself does not carry moral guilt.

This matters pastorally more than almost anything else in this article. If you are troubled by intrusive thoughts, unwanted attractions or sudden ugly impulses, the arrival of the thought is not the sin. The distinction between temptation and sin is the difference between being hunted and being complicit.

Where the line actually falls

James gives the clearest account. Each person is tempted when he is lured and enticed by his own desire. Then desire when it has conceived gives birth to sin (James 1:14-15). There are three stages there, and the middle one is where the boundary between temptation and sin is drawn.

Stage one is the presence of desire and the arrival of the enticement. Stage two is conception, the moment the will turns towards it and begins to entertain, welcome and nurse it. Stage three is birth, the act itself. Sin is conceived at stage two, well before anything visible happens.

That is why Jesus can say that looking at a woman with lustful intent is already adultery in the heart (Matthew 5:28). The word for intent points to purpose rather than accident. The first sight is not the offence. The decision to keep looking in order to feed the desire is where temptation and sin part company.

The difference between the thought and the welcome

Martin Luther is supposed to have said that you cannot stop the birds flying over your head, but you can stop them nesting in your hair. Whether he said it or not, it is good theology. The thought that lands unbidden is not yours in the sense that matters. What you do in the next four seconds is.

This distinction matters enormously for believers with obsessive or intrusive thinking. If the arrival of a horrifying thought were itself sin, such people would be condemned dozens of times a day for something they are actively resisting. The distress they feel is the opposite of consent, and consent is where the boundary between temptation and sin lies.

It also protects us from the reverse error. Some believers assume that as long as nothing happened externally, nothing happened at all. Jesus destroys that in the Sermon on the Mount. You can commit adultery in a train carriage without moving a muscle, because the will has already done its work.

Where temptation and sin come from

Scripture identifies three, and it is worth knowing which one you are dealing with. There is the flesh, our own disordered desire, which James makes the primary source. There is the world, the system of values around us. And there is the devil, who is called the tempter (1 Thessalonians 3:5).

Notice that James refuses to let God be blamed. Let no one say when he is tempted that he is being tempted by God, for God cannot be tempted with evil and He Himself tempts no one (James 1:13). God tests to prove and strengthen; He never entices towards evil. I have written on that distinction in why God allows us to be tempted.

Knowing the source shapes the response. Flesh is starved and put to death. The world is resisted by renewed thinking. The devil is resisted by standing firm in the faith, and he flees (James 4:7). I have compared the first and last of these in the difference between temptation from Satan and from the flesh.

Was the temptation of Jesus genuine?

Here is the harder half of the question. Hebrews says He was tempted in every respect as we are, yet without sin (Hebrews 4:15). If Jesus could not have sinned, in what sense was that real? A test you cannot fail looks like theatre.

I hold, with the historic evangelical position, that Jesus was impeccable. He could not have sinned, because He was one person with two natures, and the person who would have sinned was the eternal Son. To say He might have sinned is to say God might have sinned, which I am not prepared to say.

But impeccability does not empty the experience. Consider an analogy. An army may be unable to lose a battle and still endure the whole weight of the assault. The outcome was never in doubt; the pressure was entirely real. Jesus faced the full force of temptation and sin and felt every ounce of it.

He felt it more, not less

Here is the point I most want to make. We tend to assume that being unable to sin means feeling temptation less keenly. The opposite is true. The person who resists to the end feels the whole strength of the pressure. The rest of us give in long before we discover what the full force feels like.

C. S. Lewis put it memorably. Only the man who resists knows how strong the temptation is; the man who yields finds out after ten minutes. Jesus never yielded, which means He alone has experienced the entire weight of temptation and sin without relief. Forty days in the wilderness, then Gethsemane, and no exit at any point.

So His sympathy is not the sympathy of someone who read about it. He knows the pull of hunger, the appeal of a shortcut, the lure of acclaim, the horror of the cup He was asked to drink. That is why Hebrews moves straight from His temptation to an invitation to draw near to the throne of grace with confidence (Hebrews 4:16).

What the wilderness teaches about resistance

Look at how He answered. Three assaults, three replies, all from Deuteronomy, all quoted rather than argued. He does not debate the tempter or examine the offer on its merits. He states what God has said and stands there. That is a model worth copying.

Notice also the timing. He was tempted after the Spirit led Him there, after the affirmation at His baptism, and while He was physically at His weakest. temptation and sin often arrive not in defeat but immediately after a spiritual high, and always when we are hungry, tired or alone. That pattern is worth learning about yourself.

His refusal also exposes what the offers really were. Bread for a starving man, rescue for a falling man, kingdoms for a king with no throne yet. Every one of them was a genuine good offered at the wrong time and on the wrong terms, which is how the most dangerous temptations usually arrive.

And notice the promise attached. God will not let you be tempted beyond your ability, but with the temptation He will provide the way of escape (1 Corinthians 10:13). There is always a door. It is usually early, usually inconvenient, and usually still standing open longer than we pretend.

So, now what?

Stop confessing temptation as though it were sin. Confess what you have actually done with it. If you resisted, thank God rather than apologising to Him. Muddling temptation and sin produces a Christian who is constantly guilty and never actually repentant of anything specific.

Learn where your own line gets crossed. For most of us there is a particular second where entertaining begins, and it is usually recognisable in hindsight. Work backwards from your last failure and find it, because that second is where the battle is won or lost.

Then plan for your weakest hours rather than your strongest. Nobody makes good decisions when exhausted, isolated and hungry, and the enemy has read that page of the manual more carefully than we have.

And take your temptations to the one who has felt them at full strength and never once yielded. He is not embarrassed by them and He is not surprised. What would it change today if you took the next assault straight to Him rather than fighting it in silence?

For because he himself has suffered when tempted, he is able to help those who are being tempted.

Hebrews 2:18, ESV