ירמיהו, פרק כ״ט, פסוק ג׳

Communication with a distant community requires a reliable channel. Jeremiah takes advantage of an official diplomatic mission to deliver his message directly to the exiled Israelites. King Zedekiah dispatches a delegation, sending his representatives Elasah and Gemariah to the city of Babylon to meet with Nebuchadnezzar. By entrusting his letter to these official envoys, the prophet ensures his words will safely reach the exiles [מצודת דוד, ביאור שטיינזלץ].

The account of this journey serves as a direct transition to the message itself, establishing that the exact contents of the prophet's letter will be detailed immediately afterward [מצודת דוד].