What hinted to rebelling?
Malbim: "Va'Tehi l'Gefen va'Ta'as Badim" (6).
What is the significance of sending messengers to Egypt?
Malbim: This explains the Mashal of the second Nesher.
What hinted to giving horses and many people?
Malbim: "Lehashkos Osah me'Arugos Mata'ah" (7).
What is the question "ha'Yitzlach"?
Malbim: There are two reasons why he will not succeed. (a) "One who does these, will he escape?!" Nebuchadnetzar will fight him and conquer him - "ha'Lo Es Sharasheha Yenatek" (9)! (b) "Will one annul a Bris and escape?!" Even if Nebuchadnetzar would not fight him, since he annulled a Bris, Hashem will punish him - "Al Arugos Tzimchah Tivash" (10).
Will he escape?
Radak, Malbim: This is said in astonishment.