What is the meaning of "Lo Chen"?
Radak citing Targum Yonasan: It is not good [what we are doing].
Why did they say "ha'Yom ha'Zeh"?
Malbim: They previously sinned like this, due to lust for money, when they took from Na'aman.
What is the meaning of "Machshim"?
Radak: We are being silent [from giving the good tidings].
Why did they mention waiting until morning?
Radak: If we will wait until morning, we will sin 1 .
Malbim: If we will not tell now, we will need to wait until morning. If we would tell at midnight (or later), they will know that we delayed to take spoils, for it is not normal to go to a camp at night.
I.e. the king will not send out anyone before morning, lest Aram is hiding in ambush. (He was concerned for this even after he heard the prophecy of relief tomorrow!) We must tell beforehand, to give to the king time to decide and prepare to send out scouts, troops or everyone, once morning comes. (PF)
What is the meaning of "u'Mtza'anu Avon"?
Rashi: We are guilty to the kingdom.
Malbim: Due to the delay, people could die from hunger.
