Parashas Vayeilech · Passuk 31:19
Therefore, write down this poem and teach it to the people of Israel; put it in their mouths, in order that this poem may be My witness against the people of Israel.
Torah Temimah points to Eruvin 54b (עירובין נ"ד ב').
English: whenever a person searches it for figs to eat, he finds figs in it, as the figs on a tree do not ripen all at once, so that one can always find a recently ripened fig, so too, with matters of Torah. Whenever a person meditates upon them, he finds in them new meaning. Rabbi Shmuel bar Naḥmani said: What is the meaning of that which is written: “A loving hind and a graceful roe, let her breasts satisfy you at all times, and be you ravished always with her love” (Proverbs 5:19)? Why were matters of Torah compared to a hind? To tell you that just as with a hind, its womb is narrow and it is cherished by its mate each and every hour like the first hour, so too, matters of Torah are cherished by those who study them each and every hour like the first hour. “And a graceful roe” is expounded as follows: That the Torah bestows grace upon those who study it. “Let her breasts satisfy you at all times”; why were matters of Torah compared to a breast? Just as with a breast, whenever a baby searches it for milk to suckle, he finds milk in it, so too, with matters of Torah. Whenever a person meditates upon them, he finds new meaning in them. “And be you ravished always with her love”; your love for Torah should always distract you from worldly matters, as was the case with Rabbi Elazar ben Pedat. They said of him, of Rabbi Elazar, that he would sit and engage in Torah study in the lower marketplace of Tzippori, and his cloak was lying in the upper marketplace of Tzippori. His mind was so focused on Torah study that he would act in this unusual manner. In this regard, the Gemara relates that it was taught in a baraita that Rabbi Yitzḥak ben Elazar said: One time a person came to take this cloak for himself and found a serpent on it guarding it. In further praise of the Torah and those who study it, a Sage of the school of Rav Anan taught: What is the meaning of that which is written: “You that ride on white donkeys, you that sit on rich cloths, and you that walk by the way, tell of it” (Judges 5:10)? “You that ride on white donkeys”; these are Torah scholars, who travel from city to city and from province to province to study Torah. “White [tzeḥorot]” are those who make it clear as noon [tzahorayim], i.e., who make the Torah comprehensible. “You that sit on couches [midin]” refers to those who judge [danin] an absolutely true judgment. “And you that walk”; these are the masters of Bible, who are the least important of the scholars. “By the way”; these are the more important masters of Mishna. “Tell of it”; these are the masters of Talmud, the most important of all, as all their conversation is about matters of Torah.
Derash on the verse (Bavli sugya) — not a formal named middah of the 13
The Gemara uses this passuk inside a sugya (question, proof, or illustration). That is classical derash, but not labeled here as one of R' Yishmael’s 13 unless the move is explicit.
Same sugya (שם שם): the metaphor of the fig presses that Torah yields to steady seekers; the witness-song is not a one-time performance.