Comentario citado sobre Zacarías 11:8

ותקצר נפש העם בדרך AND THE SOUL OF THE PEOPLE WAS MUCH DISCOURAGED BECAUSE OF THE WAY — because of the difficulties of the journey which were so hard for them. They said: Now we are close enough to enter the land, and yet we have to turn back. Just so had our fathers to turn back and they stayed in the wilderness thirty eight years until this day. —Consequently their soul became discouraged because of the hardship of the journey. In O. F., En cure del tour. — It would not be correct to say that ותקצר נפש העם בדרך means “[and the soul of the people was discouraged] while they were on the journey” and that it (the text) does not explain what it was discouraged through, for in every passage in Scripture where you find the phrase “the soul being discouraged”, it is there explained through what it became discouraged (the preposition ב being prefixed to the word that expresses the cause of discouragement). For example, (Zechariah 11:8) “And my soul became impatient of them (בהם)”, and, for example, (Judges 10:16): “And His soul became impatient with the enemies on account of the misery (בעמל) they inflicted upon Israel”. To anything that is hard for a man to bear the expression “the shortening of soul” (קצור נפש) is applicable - he is like a person upon whom trouble comes and his mind is not large enough to contain that matter and there is no room in his heart for that worry to abide there. Of the thing that causes the trouble the term “large” is used, denoting that it is too huge and heavy for a person. For example, (Zechariah 11:8) וגם נפשם בחלה בי, which signifies “(And also their souls] were great upon Me”; (Job. 10:16), “And it becomes large (it is a burden to Thee) even that Thou huntest me as though I were a lion”. (See Rashi on these verses and on Niddah 47a). To sum up the explanation: the phrase “shortening of the soul through a thing” signifies that one cannot bear it — that the mind cannot bear it.