Midrash su Ecclesiaste 9:18

(Ib. b) Our Rabbis were taught: Always shall a man consider himself as if his merits and his crimes are equally balanced; that if he fulfills a commandment then he will be happy, for that commandment will counterbalance the scale to the side of merits. If he commits an inquity then woe to him, for that crime will counterbalance the scale to the side of guilt, as it is said (Ecc. 9, 18) But one sinner causeth much to be lost, This means that one single crims which that man committed causes the loss of much goodness from him and from the entire world. R. Simon b. Jochai says: "Even a man who was perfectly righteous during his entire life and rebelled [against God] in the end will lose the credit of all his previous merits, as it is said (Ez. 33, 12) The righteousness of the righteous shall not deliver him on the day of his transgression; and on the contrary, even if one was grossly wicked during his entire life but repented in the end, none of his iniquities will be mentioned at Judgment, as it is said (Ib., ib., ib.) And as for the wickedness of the wicked he shall not stumble through it on the day that he returneth from his wickedness." Why should not such a man be considered equally divided, one-half of merits and one-half of iniquities? Said Resh Lakish: "This former refers to one who regrets his first [wicked] deeds."

These words: This is what the verse stated, "Have I not written you thirds with counsels (moatsot) and knowledge" (Proverbs 22:20). The numerical equivalent of counsels is six hundred and six. [That,] and the seven commandments that the Sons of Noach were commanded, is six hundred and thirteen. And so [too,] does it state (Isaiah 5:1), "my beloved had a vineyard in a fertile corner": "A vineyard" - that is Israel, as it is stated (Isaiah 27:2), "a vineyard of wine, sing to it." "And he separated it" (Isaiah 5:2) - with Avraham, that he cast away the residue from him, such as Yishmael. "And he cleared it of stones" - with Yitschak, that he took Esav away from him. "And he planted it with choice vines" - that is Yaakov, as all of the plantings that came out from him were good and desirable, like this choice vine which is completely good. And this is [the meaning of] "all of it was true seed" (Jeremiah 2:21). Choice vine (sorek) has a numerical equivalent of six hundred and six, [together with] the seven commandments of the Children of Noach - behold, that is six hundred and thirteen. It is written (Proverbs 3:19), "The Lord established the earth with wisdom" - and there is no wisdom besides Torah. And what is its name? Confidant (Amon), as it is written (Proverbs 8:30), "And I was a confidant with Him." And it was not called Torah until it was given at Sinai. The numerical equivalent of Torah comes to six hundred and eleven. And the two that are subtracted from six hundred and thirteen are the two that were given by the mouth of the Almighty. And this is what is stated by the verse, "God spoke one, I heard two" (Psalms 62:12). This is [the meaning of] "Moshe commanded us the Torah" (Deuteronomy 33:4) - Moshe commanded us [commandments] according to the numerical equivalent of Torah. And the Holy One, blessed be He, commanded us the [remaining] two, as I explained in Parshat Vayishma Yitro. And it is an inheritance for Yaakov, and not for the [other] nations of the world, as it is stated (Psalms 147:19), "He tells His words to Yaakov, His statutes and His judgments to Israel, He did not do this with any nation." And it is written about it, "each day," as it is stated (Proverbs 8:30), "And I was a confidant with Him and I was His delight each day." And a day is not less than a thousand years, as it is stated (Psalms 90:4), "As a thousand years in Your eyes is like the day, yesterday." Upon what was it written before it was given? If upon silver and gold, gold and silver had not been created. Rather it was written on the forearm of the Holy One, blessed be He. And so every man [should] understand and fathom with his mind and his intelligence to contemplate the Torah day and night - as it is written (Joshua 1:8), "and you shall contemplate about it day and night" - and good deeds. And it is as the Sages said: The world is half guilty and half meritorious - if one comes and commit sins such that the sins outweigh the merits, it comes out that the world becomes guilty through him; but if the transgressions are of equal weight to the merits and one comes and performs one commandment, the merits will outweigh the transgressions. Happy is he who brings merit to the world! And if he has not learned as is fitting him, let him do his actions with faithfulness. Elihayu, may his memory be blessed, said, "I was once walking on the way and I found a man, and he was mocking me and taunting me. I said to him, 'What [can] you answer on the day of judgement, since you have not studied Torah.' He said, 'I have what to answer - it is [because of] the understanding and intelligence and heart that were not given to me from the Heavens.' I said to him, 'What is your craft?' He said to me, 'I am a trapper of birds and fish.' I said to him, 'Who gave you knowledge and heart to take flax and spin it and weave it to make traps, and to catch fish and birds with them and to sell them?' He said to me, 'It is the understanding and the knowledge that were given to me from the Heavens.' I said to him, 'To take flax and to weave and spin and catch fish and birds you were given understanding and intelligence; but to acquire the Torah, they were not given to you? Behold, it is written (Deuteronomy 30:14), "But the thing is very close to you, in your mouth and in your heart to do it."' [So] he immediately thought in his heart and raised his voice in crying. I said to him, 'My son, Let it not be bad to you, as all those that come to the world are rebuked once they come and are pulled away from Torah, as it is stated (Isaiah 19:9), "And embarrassed will be the workers of flax, the combers and weavers of holes."' And it is about him and those similar to him, and those that do like his deeds. And the last word is the fear of the Lord; and those that do it with faithfulness - his craft will be counted and he is fitting for life in the world to come.'"

Another interpretation (of Gen. 18:25): FAR BE IT FROM YOU! Abraham said: Sovereign of the World, I see through the Holy Spirit that a certain woman is going to deliver an entire town.⁴⁶See Gen. R. 94:9; Eccl.. R. 9:18:2; M. Sam. 32. So am I not worthy to deliver these five cities? Which woman was that? That was Serah bat Asher, in the time that Sheba ben Bichri rebelled against David and came to Abel, as stated (in II Sam. 20:15): [THEN THEY CAME AND BESIEGED HIM IN ABEL] … AND ALL THE PEOPLE WHO WERE WITH JOAB WERE DESTROYING THE WALL TO THROW IT DOWN. When Serah perceived the situation, she began to cry out < for Joab >. They called Joab to her. When Joab came, she said (in vs. 17): ARE YOU JOAB? AND HE SAID: YES. You are a sage, since the Scripture praises you (in II Sam. 23:8) as ONE WHO SITS IN THE SEAT OF WISDOM (i.e., in the academy)…. ⁴⁷These words are commonly understood as the proper name, JOSHEB-BASSHEBETH, A TAHCHEMONITE; but this midrash, along with Numb. R. 23:13 and PR 11:3, understands the passage as translated here. The attribution of the verse to Joab, the head of David’s army, is assumed because the person depicted here comes first in a listing of David’s mighty men and is identified as the chief of David’s captains. Moreover, although the listing contains no specific mention of Joab, it does contain the names of Joab’s brothers (in vss. 18 & 24) and even his armor bearer (in vs. 37). Have you not read in the Torah (in Deut. 20:10): WHEN YOU DRAW NEAR UNTO A CITY < TO FIGHT AGAINST IT, YOU SHALL OFFER TERMS OF PEACE UNTO IT > ? Thus, was it not up to you to do so? (II Sam. 20:18:) {YOU} [THEY] USED TO SPEAK IN EARLY TIMES, SAYING: LET THEM SURELY ASK IN ABEL. (Deut. 20:10f.:) YOU SHALL OFFER TERMS OF PEACE UNTO IT (a hostile city). < THEN IT SHALL BE, IF IT MAKES YOU AN ANSWER OF PEACE >…. (II Sam. 20:18f.:) < LET THEM SURELY ASK > IN ABEL; AND THAT WAS THE END OF THE MATTER…. SO WHY WOULD YOU DEVOUR THE LORD'S HERITAGE? When he heard that, Joab became afraid and said: There is a requirement here, as stated (in vs. 20): {THEN JOAB SAID:} [THEN JOAB ANSWERED AND SAID: FAR BE IT], FAR BE IT⁴⁸Note that these words return the argument to Gen. 18:25, in which the same expression also occurs. FROM ME < THAT I SHOULD DEVOUR >…. But you, since you are a merciful < God >, is it pleasing for you to destroy these? (Gen. 18:25:) FAR BE IT FROM YOU TO DO SUCH A THING, < TO PUT TO DEATH A RIGHTEOUS PERSON ALONG WITH A WICKED ONE, SO THAT THE RIGHTEOUS ONE FARES LIKE THE WICKED! FAR BE IT FROM YOU > ! Now what did Joab say to her? (II Sam. 20:21:) THE SITUATION IS NOT THE SAME, FOR A MAN FROM THE HILLS OF EPHRAIM NAMED SHEBA BEN BICHRI < HAS RAISED HIS HAND AGAINST KING DAVID >…. Sheba is a man with a blemish, one who serves idols. (II Sam. 20:1:) NOW THERE HAPPENED TO BE THERE A MAN OF BELIAL WHOSE NAME IS SHEBA BEN BICHRI. She said to him (in vs. 19): I AM THE SHELUME (rt.: ShLM) OF THE FAITHFUL IN ISRAEL.⁴⁹Cf. the new JPSA translation here: I AM ONE OF THOSE WHO SEEK THE WELFARE OF THE FAITHFUL IN ISRAEL. I am the one who completed (rt.: ShLM) the number of Israel, as stated (in Numb. 26:46): AND THE NAME OF ASHER'S DAUGHTER WAS SERAH.⁵⁰According to Gen. 46:27, THE TOTAL OF JACOB’S HOUSE WHO CAME INTO EGYPT WAS SEVENTY PERSONS, but those named number only sixty-nine including Joseph, his two sons, and Serah. The extra person comes from counting Serah twice because of her long life. Numb. 26:46 shows that she was still alive at the time of the Exodus. Moreover, it was not too difficult to imagine that so old a woman had lived even longer into the reign of David and identify her with the wise woman of II Sam. 20:16. See the version of this tradition in PRK 11:13. Just stay in your place, and I will make peace (rt.: ShLM). Thus it is stated (in II Sam. 20:21): BEHOLD, HIS HEAD WILL BE THROWN TO YOU OVER THE WALL. And so she had confidence in herself that she would deliver his head to Joab. But see what she did (according to vs. 22)! THEN THE WOMAN CAME UNTO [ALL] THE PEOPLE IN HER WISDOM. What is the meaning of IN HER WISDOM? Simply that she said to them: Understand that Joab and all Israel are standing outside to kill us, our sons, and our daughters. They said to her: Why? She said to them: He would take a hundred people and go. They said to her: Let him take two hundred. She said to them: He only wants fifty people. They said to her: Let him take a hundred. She said to them: He only wants five: They said to her: Let him take ten. She said to them: He only wants one whose name is Sheba ben Bichri. When they heard that, they immediately went and cut off his head. Thus it is stated (in II Sam. 20:22, cont.): SO THEY CUT OFF THE HEAD OF SHEBA BEN BICHRI. Look at the wisdom of this woman! In the same way Abraham came in wisdom before the Holy One. He came < down > from fifty to forty, from forty to thirty, from thirty to twenty, and from twenty to ten. So also with this woman (according to II Sam. 20:22): THEN THE WOMAN CAME UNTO [ALL] THE PEOPLE IN HER WISDOM. Regarding her Solomon gave praise⁵¹Gk.: kalos. (in Eccl. 9:18): WISDOM IS BETTER THAN INSTRUMENTS OF WAR. The wisdom of Serah was better than the instruments of war that were in the hands of Joab. When Joab received the head of Sheba ben Bichri, he immediately went back without touching the city. Abraham said to the Holy One: Sovereign of the World, now if Joab, when he took the head of one person who was guilty, left the city alone, would you, who are merciful, destroy everyone? (Gen. 18:25:) FAR BE IT FROM YOU!