A prophet stands before a king, presenting a tale of injustice that demands immediate judgment. By framing his rebuke as a simple legal dispute, the prophet Nathan ensures that King David will evaluate the crime with strict objectivity, completely unaware that he is actually passing a harsh sentence upon himself [ביאור שטיינזלץ, אלשיך].
The narrative follows a traveler who arrives at the home of a wealthy man. Rather than offering hospitality from his own vast herds, the rich man spares his livestock and instead steals the single, beloved lamb of a poor neighbor to feed his visitor. The severity of the wealthy man's crime is magnified by two factors. First, his immense wealth means he has absolutely no need to steal. Second, his actions reveal a deep hypocrisy. He does not respect the visitor enough to part with his own property, yet once he steals the poor man's lamb, he prepares and serves it as though honoring a highly distinguished guest [מלבי״ם].
As the story unfolds, the description of the visitor shifts through three distinct stages: a passing traveler, an invited guest, and finally, a permanent master. While some suggest this changing language is simply a matter of poetic style [מצודת ציון], the primary approach among commentators is that it reveals a profound psychological truth about how temptation takes control of a person. The descent into wrongdoing does not happen all at once, but rather in a gradual progression.
At first, temptation appears as a mere traveler—weak, fleeting, and easy to turn away. If a person does not immediately reject it, the urge transforms into a guest who settles into the mind. At this stage, the individual begins to welcome the desire, though they still retain the free will to resist. Ultimately, if the person fully surrenders, the temptation becomes the master of the house, taking complete control and driving away all traces of holiness [רש״י, רלב״ג, אלשיך, חומת אנך].
This psychological progression perfectly mirrors King David's own downfall. God did not cause David to fail; rather, He left the moral struggle entirely to the king's free will. David could have easily satisfied his desires with his own wives, who represent the rich man's abundant flock. Instead, he allowed his temptation to grow unchecked. When David first saw Bathsheba, his desire was just a passing traveler. As he began to covet her, the urge became a welcomed guest. Finally, when he acted and took her for himself, the temptation became the undisputed master [מלבי״ם, אלשיך].