Przysłów 23:17 Midrasz: Ein Yaakov (Glick Edition), Kohelet Rabbah, Midrash Tehillim & Aggadat Bereshit

Further said R. Jochanan in the name of R. Simon b. Jochai: "It is permitted to quarrel with the wicked in this world, because it is said (Pr. 28, 4.) They that forsake the Torah praise the wicked, but those who observe the Torah contend with them." We also have a Baraitha to the same effect. R. Dostai b. Mathun says: "It is permitted to quarrel with the wicked in this world; as it is said (Pr. 28, 4.) They that forsake the Torah praise the wicked, but those who observe the Torah contend with them; and if some one should whisper to you saying: 'Behold! it is written (Ps. 37, 1.) Of David! Do not fret thyself because of the evil-doers.' Tell him that he whose heart smites him [who has no clear conscience] says so, for the real meaning of the passage is: Do not compete with the evil-doers, i.e., to be among evil-doers; And neither be thou envious against the workers of iniquity, to be like them. And it is also said (Pr. 23, 17.) Let not thy heart be envious against sinners, but in the fear of the Lord (remain) at all times." Is that so? Behold! R. Isaac said: "If you see a wicked man upon whom fortune smiles, do not quarrel with him, for it is said (Ps. 10, 5.) Prosperous are his ways at all times; and moreover, he always wins by law, as it is said (Ib.) Far aloof (remain) Thy punishments from him; and moreover, he sees [revenge] in his enemies, as it is said (Ib.) All his assailants, he puffeth at them." There is no difficulty [in understanding this]; one deals with secular affairs and the other deals with. divine affairs, and, if you wish, you may say both passages deal with divine affairs and there is no difficulty; for one deals with a wicked man upon whom fortune smiles, and the other with the wicked man upon whom fortune does not smile; and, if you wish, you may say both deal with a wicked man upon whom fortune smiles; yet there is no difficulty, for one deals with a perfectly righteous man and the other with one who is not righteous throughout; for R. Huna said: "What means the passage (Habakuk 1, 13.) Wherefore wilt thou look upon those that deal treacherously: be silent when the wicked swallows us him that is more righteous than he? How can it be possible that a wicked man should swallow up a righteous man? Behold! It is written (Ps. 37, 33.) The Lord will not leave him in his hand, and it is written (Pr. 12, 21.) No wrong can come unawares to the righteous! We must therefore say: "One, more righteous than he is, the wicked person does destroy, but he cannot destroy the perfectly righteous man." And, if you wish, you may say that when fortune smiles upon a man, it is different [and even one perfectly righteous should not fret at him].

“I have spoken with my heart, saying: Behold, I have amassed and added wisdom, beyond all who were before me over Jerusalem; my heart has seen much wisdom and knowledge” (Ecclesiastes 1:16).
“I have spoken with my heart” – the hearts sees, as it is stated: “My heart has seen much.” The heart hears, as it is stated; “Give your servant an understanding [shome’a]¹²⁰Literally, hearing. heart” (I Kings 3:9). The heart speaks, as it is stated: “I have spoken with my heart.” The heart goes, as it is stated: “Didn’t my heart go?” (II Kings 5:26). The heart falls, as it is stated: “Let no man’s heart fall” (I Samuel 17:32). The heart stands, as it is stated: “Will your heart endure [haya’amod]”¹²¹Literally, stand. (Ezekiel 22:14). The heart rejoices, as it is stated: “Therefore, my heart rejoices” (Psalms 16:9). The heart cries out, as it is stated: Their heart cried out to the Lord” (Lamentations 2:18). The heart is consoled, as it is stated: “Speak to the heart of Jerusalem” (Isaiah 40:2).¹²²This verse is preceded by: “Console, console My people, says your God.” The heart grieves, as it is stated: “Your heart shall not be grieved” (Deuteronomy 15:10). The heart hardens, as it is stated: “The Lord hardened Pharaoh’s heart” (Exodus 9:12). The heart softens [mitrakekh], as it is stated: “Let your heart not be faint” (Deuteronomy 20:3). The heart is saddened, as it is stated: “He was saddened in His heart” (Genesis 6:6). The heart fears, as it is stated: “From the fear of your heart” (Deuteronomy 28:67). The heart breaks, as it is stated: “A broken and contrite heart” (Psalms 51:19). The heart becomes conceited, as it is stated: “Your heart will grow haughty” (Deuteronomy 8:14). The heart is recalcitrant, as it is stated: “But this people had a revolting and rebellious heart” (Jeremiah 5:23). The heart fabricates, as it is stated: “The month that he fabricated from his heart” (I Kings 12:33). The heart contemplates,¹²³Matters of stupidity as it is stated: “[I will have peace] though I walk in the stubbornness of my heart” (Deuteronomy 29:18). The heart overflows, as it is stated: “My heart overflows with goodly matter” (Psalms 45:2). The heart calculates [meḥashev], as it is stated: “Many are the thoughts [maḥshavot] in the heart of man” (Proverbs 19:21). The heart desires, as it is stated: “The desire of his heart You have granted him” (Psalms 21:3). The heart deviates, as it is stated: “Let your heart not turn aside to her ways” (Proverbs 7:25). The heart strays, as it is stated: “You shall not follow after your heart…[after which you stray]” (Numbers 15:39). The heart is sustained, as it is stated: “And sustain your heart” (Genesis 18:5). The heart is stolen, as it is stated: “Jacob stole the heart of Laban” (Genesis 31:20). The heart is humbled, as it is stated: “Perhaps then their hearts will be humbled” (Leviticus 26:41). The heart is enticed, as it is stated: “He spoke soothingly¹²⁴Literally, “to the heart.” Shekhem was speaking to Dina and attempting to entice her to marry him. to the young woman” (Genesis 34:3). The heart goes astray, as it is stated: “My heart has gone astray” (Isaiah 21:4). The heart trembles, as it is stated: “For his heart was trembling” (I Samuel 4:13). The heart awakens, as it is stated: “I am asleep but my heart is awake” (Song of Songs 5:2). The heart loves, as it is stated: “You shall love the Lord your God with all your heart” (Deuteronomy 6:5). The heart hates, as it is stated: “Do not hate your brother in your heart” (Leviticus 19:17). The heart envies, as it is stated: “Let your heart not envy…” (Proverbs 23:17). The heart is searched, as it is stated: “I the Lord search the heart…” (Jeremiah 17:10). The heart is rent, as it is stated: “Rend your heart and not your garments” (Joel 2:13). The heart meditates, as it is stated: “The meditation of my heart will be understanding” (Psalms 49:4). The heart is like fire, as it is stated: “My heart will be like fire” (Jeremiah 20:9). The heart is like stone, as it is stated: “I will remove the heart of stone” (Ezekiel 36:26). The heart repents, as it is stated: “Who returned to the Lord with all his heart” (II Kings 23:25). The heart is incensed, as it is stated: “For his heart is incensed” (Deuteronomy 19:6). The heart dies, as it is stated: “His heart died within him” (I Samuel 25:37). The heart melts, as it is stated “The heart of the people melted” (Joshua 7:5). The heart absorbs matters, as it is stated: “These matters that I command you today shall be upon your heart” (Deuteronomy 6:6). The heart absorbs fear, as it is stated: “I will place My fear in their hearts” (Jeremiah 32:40). The heart thanks, as it is stated: “I will thank my Lord with all my heart” (Psalms 111:1). The heart covets, as it is stated: “Do not covet her beauty in your heart” (Proverbs 6:25). The heart is toughened, as it is stated: “And one who toughens his heart” (Proverbs 28:14). The heart becomes merry, as it is stated: “It was when their hearts were merry” (Judges 16:25). The heart deceives, as it is stated: “Deceit is in the heart of those who devise evil” (Proverbs 12:20). The heart speaks from within, as it is stated: “Hannah was speaking in her heart” (I Samuel 1:13). The heart loves a bribe, as it is stated: “Your eyes and your heart [are only on your ill-gotten gain]” (Jeremiah 22:17). The heart writes matters, as it is stated: “Write them on the tablet of your heart” (Proverbs 3:3). The heart devises, as it is stated: “Duplicity is in his heart, he devises evil” (Proverbs 6:14). The heart absorbs mitzvot, as it is stated: “The wise of heart will grasp mitzvot (Proverbs 10:8). The heart acts with malice, as it is stated: “The malice of your heart deceived you” (Obadiah 1:3). The heart arranges, as it is stated: “To a person are the arrangements of the heart” (Proverbs 16:1). The heart glorifies, as it is stated: “Your heart has glorified you” (II Chronicles 25:19). That is, “I have spoken with my heart, saying: Behold, I have amassed…”

To David: Do not compete with evildoers. As it says in Proverbs 23:17, "Do not let your heart envy sinners, but always be zealous for the fear of the Lord." So why envy (them) in the fear of the Lord all day long? Do not envy the candle of the wicked, for you can see how much oil is in it, a quarter or an eighth, (yet) the entire oil (burns) and the candle goes out. And thus it says (in the same chapter, verse 18), "Surely there is a future hope for you, and your hope will not be cut off." And it says (verse 20), "The lamp of the wicked is snuffed out." This is its bright rule. Therefore, David says, "Do not compete with evildoers." Be zealous for a candle that never goes out, and whose candle does not go out. As it says (Proverbs 6:23), "For this command is a lamp, this teaching is a light, and correction and instruction are the way to life." Therefore, do not let your heart envy (them). The Lord said, "I am jealous because if there were no jealousy, the world would not exist. For if Abraham had not been jealous for the Lord, he would not have acquired heaven and earth." And when did he become jealous? When he said to the kings of righteousness, "How did you come out of the ark?" He said to him, "With righteousness that we did." He said to him, "What righteousness did you have to do, and were there poor people there? There was only Noah and his sons, so for whom did you do righteousness?" He said to him, "About the animals and the birds." We were not sleeping all night, but we were giving (food) to this one and to that one. Once we delayed ourselves and my father was injured. At that moment, Abraham said, "If these (people) had not done righteousness with animals, birds, and beasts, they would not have come out of there. And because he delayed himself, he almost received his reward and was injured. If I do (good) with human beings, who are in the image and likeness of angels, how much more will I benefit from the harm?" Immediately (Genesis 21:33), he planted a tamarisk tree. He ate, drank, and rejoiced. And Solomon said (Ecclesiastes 4:4), "And I saw that all toil and all achievement spring from one person's envy of another. This too is meaningless, a chasing after the wind." Therefore, do not let your heart envy (them) in sin....