יונה, פרק ד׳, פסוק א׳

Following the mass repentance of Nineveh, the prophet's reaction is entirely unexpected. Instead of rejoicing over the success of his mission and the salvation of tens of thousands of lives, Jonah is consumed by intense anger [ביאור שטיינזלץ] and profound inner sorrow [מצודת דוד]. He is deeply troubled that God has withdrawn the decree of destruction [אבן עזרא, מצודת דוד] and that his dire warning will not come to pass [ביאור שטיינזלץ]. God informs Jonah through prophecy that the decree is canceled even before the forty-day warning period expires [רד״ק, מצודת דוד]. This realization affects him so heavily that it manifests as a literal physical blow; the grief is so crushing that Jonah becomes bedridden with severe illness and wishes for death [מלבי״ם, אברבנאל].

The prophet's extreme reaction to the city's survival stems from a mixture of personal anguish and deep national anxiety. On a personal level, Jonah fears that the gentiles will brand him a false prophet because his prediction of doom failed to materialize [רש״י]. This frustration is magnified by his belief that their repentance is superficial. He suspects that they have not truly uprooted their sins, but merely delayed their inevitable punishment. To Jonah, enduring the public shame of being labeled a false prophet is simply not worth it for the sake of a temporary reprieve for a doomed city [חומת אנך].

However, the primary approach among commentators points to a much deeper motive: Jonah's overwhelming concern for the Israelites. He is angered by the painful contrast between the two nations, watching the people of Nineveh repent while the Israelites stubbornly continue in their wicked ways [רד״ק]. Furthermore, Jonah observes that while the people of Nineveh have corrected their social behavior toward one another, they still cling to idolatry. The fact that God forgives them despite this incomplete repentance leads Jonah to a devastating conclusion. He realizes that God is intentionally preserving Nineveh and showing them favor so that they can eventually serve as a rod of His anger—a destructive weapon used to punish the Israelites. Jonah's burning anger and despair flow from the agonizing realization that he has personally facilitated the survival of the very nation destined to destroy his homeland and strike down his people [מלבי״ם, אברבנאל].