Midrash su Proverbi 13:11

R. Shimon b. Yochai says: An analogy: Two brothers are counting money after their father's (death). One exchanges a dinar (for food) and eats it; the other exchanges it and sets (the exchange) aside. The first remains with nothing; the other, after some time, finds himself wealthy. Thus with a Torah scholar: If he learns two or three things a day, two or three chapters a week, two or three sections a month, after some time he finds himself "wealthy." Of such a one it is written (Proverbs 13:11) "… That (treasure) gathered with the hand will increase." And if one says "Today I will study (Torah)"; "Tomorrow I will study"; "Today I will learn (Mishnah)"; "Tomorrow I will learn," in the end he remains with nothing. Of such a one it is written (Ibid. 10:5) "One who sleeps in harvest time is a shameful son," and (Ibid. 20:4) "Because of the (cold of) winter, the sluggard will not plow." And it is written (Ibid. 24:30) "By the field of a lazy man I passed": This is one who acquired a field in the past; "and by the vineyard of a man lacking a heart": This is one who acquired a vineyard (in the past). Since he acquired a field and acquired a vineyard, and did not work in them, whence is it derived that he is bound to be called "lazy"? From "By the field of a lazy man I passed and by the vineyard of a man lacking a heart." Why is he called "lacking a heart"? Because he acquired a field and a vineyard and did not work in them. And whence is it derived that he (such a Torah scholar) is bound to leave (unlearned) two or three things in a section? From (Ibid. 31) "and, behold, it was all grown over with thorns." And whence is it derived that he will seek the opening of a section and not find it? From "nettles had covered (i.e., concealed) its face ('opening')." And it is written further "and its stone wall was broken down." Because it ("its face") is not ready to hand, he sits and rules unclean what is clean, and clean what is unclean, and he breaks down the fences of the sages. What is the punishment of such a one? Solomon came and delineated it through the tradition (kabbalah), (Koheleth 10:8) "and the breaker of a fence will be bitten by a snake." For all who break the fences of the sages are destined to be punished.

"by the word of the L-rd.": When G-d takes the souls of the righteous, He does so gently. To what may this be compared? To a trustworthy man in a city, with whom everyone deposited their pledges. When one of them would come to claim it, he would (immediately) take it out and hand it to him, knowing exactly where it was. But when he came to send it through his son, or servant, or messenger, they would turn things topsy-turvy, not knowing their locations. Similarly, when G-d takes the souls of the righteous, He does so gently, and when He takes the souls of the wicked, He relegates (the task) to cruel, evil angels, who wrest out their souls. And thus is it written (Proverbs 13:11) "and a cruel angel will be sent against him," and (Iyyov 36:14) "Their souls will die amidst turmoil."