הָרֹ֣ה עָ֭מָל וְיָ֣לֹד אָ֑וֶן וּ֝בִטְנָ֗ם תָּכִ֥ין מִרְמָֽה׃ (ס)
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Tur HaArokh
ויהי העם כמתאוננים, “It happened when the people were in a frustrated mood looking for things to complain about;” Nachmanides, quoting Ibn Ezra who considers that the root of the word מתאוננים is און, (as in Job 15,35) does not agree, saying that there is no reason why the Torah should gloss over the people’s sinful behaviour by being so oblique. We have no other instance where the Torah downplays the people’s errant conduct. Nachmanides therefore believes that the correct interpretation is that when the people now faced the terrible desert, they became full of misgivings and fear as to how they would fare on the journey ahead of them. He therefore understands the word מתאוננים as in Lamentations 3,39 מה יתאונן אדם חי גבר על חטאיו?, “Of what shall a living man complain? Each one of his own sins.” Such a negative attitude by a nation that should have looked forward with joyful anticipation to coming ever closer to the promised land, was considered as sinful by Hashem. He had shown them ample proof of making their lives tolerable even in the desert, and they had no reason to be despondent. When we view matters from this perspective we can understand why the Torah writes in verse 4 וישובו ויבכו גם בני ישראל, that the Children of Israel wept a second time, etc.” The first time had been what we read about in verse 1. The people had not learned a lesson from the heavenly fire that had claimed many lives among the people.