What is the meaning of "Lo Somrun Kesher"?
Rashi (from Sanhedrin 26a): You, Chizkiyah's supporters, even though you are the minority compared to Shevna's cohorts, do not say that you should follow the majority.
Radak #1: Do not think and consent to conspire and rebel against Malchus Beis David. This is like "ha'Lehargeni Atah Omer" (Shemos 2:14), "va'Yomer Lehakos Es David" (Shmuel II, 21:16).
Radak #2: Do not say to each other [to conspire].
Malbim: What the nation decides is a lasting knot, I command you not to say that it is a knot, for it will not last.
What is "Mora'o"?
Rashi: This nation tells you to fear Sancheriv and make peace with him.
Malbim: It is fear of the conspiracy. Do not fear it, for they cannot harm you.
What is "v'Lo Sa'aritzu"?
Rashi citing Targum Yonasan: Do not say that he is strong.
Malbim: Do not say that [the conspiracy] is strong. It itself is weak. (Sometimes people fear the weak, if the weak can damage, and they do not fear the strong that does not damage, but in any case they consider him strong.)
QUESTIONS ON RASHI
Rashi writes that you should not follow the majority. What is the reason?
Rashi: A band of Resha'im are not counted [to determine the majority - Sanhedrin 26a]. The same applies to the band of the 10 tribes who banded with Melech Mitzrayim.
