שמות, פרק ז׳, פסוק כ״ג

A leader's true character is exposed during a national crisis. Faced with a devastating blow to Egypt's primary water source, the king responds with apathy and denial, prioritizing his personal comfort over the suffering of his nation. Unable to bear the overwhelming stench rising from the ruined river, he simply turns his back and walks away [ביאור יש״ר, ביאור שטיינזלץ]. He returns to the comfort of his palace, completely dismissing the catastrophic damage to his kingdom and the looming threat of deadly thirst [צרור המור, מלבי״ם]. He makes no effort to find alternative water sources for his people, nor does he approach Moses to pray for God to end the crisis [אור החיים, העמק דבר, מלבי״ם]. Some suggest his silence is a calculated move; by ignoring the situation, he avoids openly refusing to release the Israelites, hoping this evasion will save him from further punishment [אור החיים].

At the core of this profound indifference is a flawed assumption. The king believes he is merely witnessing a magic trick that will wear off in a matter of hours, assuming that supernatural feats cannot endure and nature will quickly correct itself [העמק דבר, צרור המור]. Blinded by this mindset, he fails to recognize the vast difference between a divine act and the parlor tricks of his own magicians [ספורנו, רלב״ג, קאסוטו]. While the royal sorcerers likely produced a brief optical illusion using a small amount of standing water in a bowl, God fundamentally altered the nature of an entire flowing river, turning it into actual blood for seven full days [ספורנו, ברכת אשר על התורה].

The primary approach among commentators is that the king's dismissal of the ruined river is a direct continuation of his earlier refusal to acknowledge the staff that transformed into a creature. The plague of blood actually validated that earlier sign, proving it was not mere sorcery, yet the king remains completely closed off [פרדס יוסף]. Other perspectives highlight the severe escalation of the events. While the staff was merely a warning sign, the ruined river is a destructive plague causing heavy damage. He should have finally felt fear of God's power, yet he chooses to ignore this severe blow as well [רמב״ן, גור אריה, הטור הארוך]. Furthermore, this reaction demonstrates that the king hardens his heart entirely on his own initiative, exactly as he did during the previous encounter [רשב״ם, ביאור יש״ר].