At the height of the plague of Hail, the biblical narrative pauses to detail the exact agricultural damage inflicted on Egypt. The destruction of the flax, essential for the textile industry, and the barley, a staple of cheap food, serves as more than just a botanical assessment. The primary approach among commentators is that this detailed account is a direct continuation of Moses speaking to Pharaoh, exposing the true psychological motives behind the king's stubbornness and explaining why he and his servants still refuse to fear God.
Evaluating the state of the crops, Pharaoh found reasons to dismiss the severity of the plague. Observing that only the hardened crops were shattered while the softer ones survived, he concluded that this was a purely natural weather event operating according to the laws of physics, rather than deliberate Divine providence [הכתב והקבלה, ברטנורא]. Furthermore, the survival of the wheat and spelt—Egypt’s most valuable and essential crops—led Pharaoh to underestimate God's power. Because the core of the Egyptian economy had not collapsed, Pharaoh assumed God had either mistimed the strike or possessed limited strength, viewing the survival of these vital crops as a stroke of good fortune for his nation [אור החיים, רש״ר הירש].
In response to these dismissive thoughts, Moses clarifies that the survival of the wheat is not a sign of Divine weakness, but a looming threat. The remaining crops are merely being held in deposit by God, destined to be devoured by the coming locusts if Pharaoh continues his rebellion [רמב״ן, העמק דבר]. Alternatively, some commentators view the agricultural details simply as a factual clarification, specifying exactly which vegetation was ruined after the sweeping devastation of the hail [רלב״ג, קאסוטו]. The destruction was entirely dependent on the developmental stage of the plants. Although it was winter, Egyptian agriculture ripened unusually early [פענח רזא]. The barley had already matured, sprouting fresh ears and hardening in its stalk [רש״י, קאסוטו]. Similarly, the flax had grown into firm, stable stalks [רש״י, שטיינזלץ, רש״ר הירש], or had developed its cup-like flowers just before blooming [שד״ל, קאסוטו]. Precisely because of their rigid maturity, these crops were mercilessly crushed by the force of the hail [חזקוני], while the softer, undeveloped plants bent without breaking, preserved only to be consumed by the locusts later [ביאור יש״ר].
On a deeper, symbolic level, the contrasting fates of the crops reflect the spiritual reality of the time. The tall, hardened plants that were struck down represent the wickedness and arrogance of the oppressive Egyptians. Conversely, the soft, late-blooming crops that survived symbolize the Israelites, enduring the darkness of exile and the heavy yoke of slavery, yet remaining resilient as they are cleansed of their past wrongs [שפתי כהן].