1)
What is the meaning of "Lo Sa'artzun"?
1.
Rashi, Targum Onkelos and Targum Yonasan: It means 'Don't be broken (in spirit)!' 1
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Rashi: As in Iyov, 30:6.
2)
"Lo Sa'artzun ve Lo Sir?un meihem". When did Moshe say this? Why is it not mentioned in Sh'lach-L'cha?
1.
Oznayim la'Torah: 'The words of the Torah are poor in one place and rich in another'. Some say that he said it in support of Calev, when he silenced the people to hear what Moshe had to say; others, when Moshe and Aharon fell on their faces before the people as a rebuke to counter thir grumbling. 1
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Oznayim la'Torah: A pity he did not say it when they first came to him to request sending spies!