תניא מקרעין על המת ולא מדרכי האמורי אמר רבי אלעזר שמעתי שהמקרע על המת יותר מדאי לוקה משום בל תשחית וכ"ש גופו
The Gemara suggests: Rather, it is the One may rend garments in anguish over one who died, and it is not considered of the ways of the Amorites, but a Jewish custom. Rabbi Elazar says: I heard that one who rends his garments excessively over one who died is flogged for having transgressed the prohibition of: Do not destroy (see Deuteronomy 20:19). The Gemara suggests: And all the more so it is the case that according to Rabbi Elazar one who injures his body in anguish transgresses this prohibition.
§ In connection with the prohibition against cutting down trees the Gemara notes: Rav said with regard to a palm tree that still produces fruit in the amount of a kav, that it is prohibited to cut it down due to the prohibition of: “When you shall besiege a city…you shall not destroy the trees” (Deuteronomy 20:19). The Gemara raises an objection to the statement of Rav from what was taught in a mishna (Shevi’it 4:10): How much fruit must be on an olive tree so that one may not cut it down? A quarter-kav. Why did Rav say that it must produce a full kav? The Gemara answers: Olive trees are different, since they are significant. Therefore, even a quarter-kav is valuable. Rabbi Ḥanina said: My son Shivḥat did not die for any reason other than that he cut down a fig tree before its time. Ravina says: But if the lumber was greater in monetary value than its fruits, it is permitted to chop it down, and this does not violate the prohibition against destroying a tree.
(יט) כִּ֤י הָֽאָדָם֙
עֵ֣ץ הַשָּׂדֶ֔ה
לָבֹ֥א מִפָּנֶ֖יךָ בַּמָּצֽוֹר׃
...Are the trees of the field human beings, (able) to come against you in a siege?
Beshalach: Verse 348
It is written, "And he cried to Hashem, and Hashem showed him a tree" (Ibid. 25). A "tree" means only Torah, as it is written, "She is a Tree of Life to those who lay hold on her" (Mishlei 3:18). And Torah means the Holy One, blessed be He. Rabbi Aba said, "Tree" means the Holy One, blessed be He, as it is written, "For a man is the tree of the field" (Devarim 20:19). The "tree of the field," assuredly is the tree of the Field of the Holy Apples, MEANING THIS FIELD IS MALCHUT. "THE TREE OF THE FIELD" REFERS TO ZEIR ANPIN, HER HUSBAND. And when the splendor of the glory of the King appeared over them, then, "when he had cast into the waters, the waters were made sweet" (Shemot 15:25). What is the meaning of, "and the waters were made sweet?" It means that the Accuser has become an advocate.