ירמיהו, פרק מ״ב, פסוק י״ט

In a moment of painful disillusionment, Jeremiah looks into the hearts of his audience and realizes their promise to obey God was entirely empty. Up to this point in his prophecy, he delivered the word of God exactly as he received it. Now, however, he shifts his approach, adding his own personal words of severe rebuke [מלבי״ם, ביאור שטיינזלץ]. He can clearly see that the crowd standing before him has already made up their minds to go to Egypt. Their earlier declarations of loyalty were nothing more than a deception, fooling both the prophet and themselves [ביאור שטיינזלץ].

The background to this sudden shift lies in the wild swings of the people's emotional state. During the sacred days between the New Year and the Day of Atonement, gripped by deep anxiety following the assassination of Gedaliah, the people approached the prophet with a genuine desire to seek guidance from God. But as the days of repentance passed, they reverted to their old habits. Their terror of revenge from the Chaldeans overwhelmed them. Coupled with this was a profound theological fear of remaining in the Land of Israel. The people understood that the land was subject to strict and constant Divine supervision, where every sin would draw an immediate punishment. Seeking an escape from this intense scrutiny, they chose to flee to Egypt, a place they viewed as far removed from God's watchful eye, hoping to find a false sense of security [אברבנאל].

Seeing clearly on their faces that they have no intention of obeying the command to stay out of Egypt, the prophet issues a harsh and formal warning. This declaration is an official act, typically performed in the presence of witnesses so that it can never be denied later [מצודת ציון]. The purpose of this warning is to shift the full weight of responsibility onto their shoulders. Until this moment, they might have sinned out of ignorance or misunderstanding. However, once explicitly warned, their journey to Egypt transforms into a deliberate and calculated rebellion [אברבנאל].

The prophet concludes his message by looking toward the future. He makes it clear that when disaster inevitably strikes them in Egypt, they will remember this very day. In that moment of crisis, they will know with absolute certainty that the prophet had warned them in advance, telling them exactly what was going to happen [מצודת דוד].