1)
Why does it say that he sent "Es Na'aro"?
1.
Rashi: It means, Al Yedei (via) his youth.
2)
What is "Pesuchah"?
1.
Ibn Ezra: It was spread, like "va'Yifresehu Chizkiyah Lifnei Hashem."
2.
Metzudas David: It was not sealed with a signet.
3)
Why does it say "ka'Davar ha'Zeh"?
1.
Malbim: The youth verbally said that they should meet in Kefirim; the letter said that it is urgent.
