כְּצִ֣יץ יָ֭צָא וַיִּמָּ֑ל וַיִּבְרַ֥ח כַּ֝צֵּ֗ל וְלֹ֣א יַעֲמֽוֹד׃
Nasce como a flor, e murcha; foge também como a sombra, e não permanece.
Rav Hirsch
מקור נפעל ,המול לכם von מול, ebenso ימול entschieden von מול, ebenso ja auch וימל את בשר ערלתם V. 23. Wahrscheinlich sind auch die anderen hier vorkommenden Formen von derselben Radix, נִמול V. 26, und נִמלו V. 27 praeterit. Nifal von מול wie נֵעור Sechaija 2, 17 von עור. Es wäre dann allerdings ונְמַלְתֶם eine ungewöhnliche Form für ונְמולתֶם, wofür jedoch die Hifilform הֵקַמְתִי statt הְַקִימתִי eine Analogie böte. Das את in נמלתם את בשר nach dem Nifal kann nicht dagegen sprechen, da es Raw Hirsch on Genesis 17: 26 entschieden in derselben Verbindung vorkommt בְַהִמ֗לוֹ את בשר ערלתו. Man pflegt noch eine Wurzel נמל in derselben Bedeutung anzunehmen und dann ונְמַלתם als praeterit. Kal, ihr sollt beschneiden das Fleisch eurer Vorhaut, zu übersetzen. daß es eine solche Wurzel in dieser Bedeutung gibt, dafür spricht allerdings das נמוֹל אברהם und נִמלו V. 26, 27; Formen, welche, ungeachtet der bereits zitierten Analogie mit נֵעוֹר, doch immerhin mehr für die Abstammung פ"ג sprechen. Allein die Wurzel נמל selbst kommt auch nur intransitiv vor, כציץ יצא וַיִמָל (Job 14, 2) und hieße ונמלתם וגוי dann immer noch, ihr sollt geknickt, geschwächt, beschnitten werden an dem Fleische eurer Vorhaut.
Kli Yakar
A fruit tree yielding fruit after its kind. For every tree is called a fruit tree and they all produce fruit — some for eating and some for healing. And regarding what it says: yielding fruit after its kind, it seems appropriate to explain that man is [like] a tree of the field and resembles it both in terms of his upright stature and in terms of having eternal continuity like man, as it is written For there is hope for a tree (Job 14:7). And all grasses relate to other living creatures both in terms of their low stature and in terms of not having root and branch, but rather like a flower that emerges and withers (Job 14:2). The Holy One, blessed be He, created each type of food to be suitable for the constitution of the one who eats it, and paired each kind with its kind, as it is written and satisfies every living thing with favor — meaning, with something that is favorable to it by being close to its nature and constitution. Therefore it says and to every beast of the earth… every green herb for food, because herbs are only suitable specifically for the non-speaking, material living creatures. But to man He said Behold, I have given you every herb… and every tree… because from the material aspect of man, herbs are suitable for him, and from the mixture of spirituality within him, tree fruit is suitable for him. Thus each kind goes to its kind, therefore it says: yielding fruit after its kind — to that which is its kind, namely man. And regarding herb yielding seed, it doesn’t mention “after its kind” because it is also for man even though it’s not entirely of his kind. However, in the making [of vegetation] it mentions “after its kind” because from one aspect it is according to its kind — namely, for the material aspect of man.