כִּֽי־תָצ֣וּר אֶל־עִיר֩ יָמִ֨ים רַבִּ֜ים לְֽהִלָּחֵ֧ם עָלֶ֣יהָ לְתָפְשָׂ֗הּ לֹֽא־תַשְׁחִ֤ית אֶת־עֵצָהּ֙ לִנְדֹּ֤חַ עָלָיו֙ גַּרְזֶ֔ן כִּ֚י מִמֶּ֣נּוּ תֹאכֵ֔ל וְאֹת֖וֹ לֹ֣א תִכְרֹ֑ת כִּ֤י הָֽאָדָם֙ עֵ֣ץ הַשָּׂדֶ֔ה לָבֹ֥א מִפָּנֶ֖יךָ בַּמָּצֽוֹר׃
你若長時間圍困一座城,攻打它,要奪取它,不可揮斧砍伐那城周圍的樹木,因為你可以吃它的果子,所以不可砍伐它。難道田間的樹木是人,要在你面前陷入圍困嗎?
Rashi
ימים [WHEN THOU SHALT BESIEGE A CITY] ימים DAYS — The plural implies at least two days,
Ibn Ezra
man is a tree of the field I have already explained, in Sefer Hayyǝsod , that in every language there is a tendency to omit words in order to be concise. Nevertheless, one never omits the word “not”, because then one’s meaning is reversed. A great Spanish grammarian asserted that the sentence is missing an interrogative heh , as if Scripture were asking rhetorically, “is a tree of the field a man?” — but in my view this interpretation is not correct, because it makes no sense to explain a prohibition against destroying a fruit tree, on the grounds that a tree is not a man (and is thus incapable of running away). In my opinion there is no need for any of this. The meaning, rather, is as follows: You may eat of them, but do not cut them down, for man is a tree of the field (i.e., the life of man depends on the trees of the field). A similar construction appears in “for it is taking a life in pawn” [24: 6], which clearly means “it is taking the means of a man’s livelihood in pawn”.
Ramban
FOR IS THE TREE OF THE FIELD A MAN? Rabbi Abraham ibn Ezra has explained it well, that the purport of the verse is as follows: “for thou mayest eat of it, for the man is the tree of the field [i.e., man is dependent on the fruit-tree for food], and thou shalt not cut it down that it be used by you in the siege. And the meaning of the expression for the man is the tree of the field is like for he taketh a man to pledge”357Further, 24:6. [which means, “when he takes away a man’s tools and means of earning a livelihood in security for a debt, it is as if the man’s very life is being taken from him,” and here too it means “for the tree of the field is man’s life” because his life depends on it]. But in the opinion of our Rabbis,358Baba Kamma 91b. it is permissible to cut down a fruit-tree to build a bulwark, and the statement of the Torah, Only trees which thou knowest that they are not trees for food etc.359Verse 20. is to assign priority, meaning that a fruitless tree should be cut down prior to a fruit-tree. If so, the meaning of the section, in their opinion, is that the Torah warned, Thou shalt not destroy the trees to cut them down destructively, not for the purpose of the siege, as is the custom of armies [to cut down trees needlessly]. And the reason for it is that warriors destroy a city and its environs in the hope of conquering it, as it says, and ye shall fell every good tree, and stop all fountains of water.360II Kings 3:19. You are not to do so, to destroy it, for you are to trust in G-d that He will deliver it into your hand. For the man is the tree of the field, for you will eat of its fruit and live, and through it the city will be besieged by you, meaning to say, you will eat from it after conquering the city, and also when you are encamped, engaged in the siege, you should do likewise. And the meaning of the expression, them thou mayest destroy and cut down359Verse 20. is that you are permitted to cut them down to build bulwarks and also to destroy them until it be subdued,359Verse 20. for sometimes the destruction [of the trees] is for the purpose of capturing the city; for example, when the people of the city go out and fetch the wood thereof, or they hide there in the forest to fight against them, or when the trees are a refuge and a covert361Isaiah 4:6. to the city from stones of stumbling.362See ibid., 8:14.