Rabbi Yosef’s Surprising View on Plagiarizing

The Jerusalem Post featured an unusual article about the Chief Rabbi of Holon Rabbi Avraham Yosef, the son of the late Sefardic-Haredi leader, Rabbi Ovadia Yosef. His son sits on the Israel Chief Rabbinate’s council and commands considerable influence in Orthodox politics in Israel and abroad.

In one of his Moreshet Orthodox website, somebody asked him the following question:

  • My friend needs to submit university work; she took the work from someone else and asked me to change the wording so that the work will not look like the same. Is it permissible for me to help my friend to re-word the work?” a woman asked.

Rabbi Yosef said that it is permissible to plagiarize and cheat. “[It is] permitted. And it is [fulfilling the] commandment of bestowing kindness, especially if she has a good command of the material,” Yosef ruled.[1]

There are several halachic problems with R. Yosef’s advice. The primary problem I wish to point out is the issue of ge’nei’vat da’at, which in Hebrew means, “stealing one’s mind,” which can easily apply to all forms of misrepresentation, taking credit for someone’s work. Anytime a person deliberately tries to create a mistaken assumption in the minds of others, this is considered a major breach of Jewish ethics and law. Arguably,ge’nei’vat da’at goes far beyond just lying. It is also a clear violation against bearing false witness—a law that is considered one of the most important of the Ten Commandments.

It is surprising that some medieval scholars thought this is only a rabbinical prohibition, but the verses pertaining to all forms of theft are well-known. In fact, the Tanakh even mentions the crime of plagiarism “See, therefore, I am against the prophets, says the Lord, who steal my words from one another” (Jer.  23:30). More seriously, Rabbi Yosef is misleading others to sin, which is arguably Judaism’s most cardinal sins and violates just about every biblical law pertaining to fraud and deception. [2]

Then again, there is a famous rabbinical dictum: R. Eleazar further said in the name of R. Hanina: Whoever reports a saying in the name of its originator brings redemption to the world, as it says, And Esther told the king in the name of Mordecai (Esther 2:22). [3]

The literal meaning of ge’nei’vat da’at in Hebrew is theft of one’s mind, thoughts, wisdom, or knowledge, i.e., fooling someone and thereby causing him or her to have a mistaken assumption, belief, and/or impression. Thus, the term is used in Jewish law to indicate deception, cheating, creating a false impression, and acquiring undeserved goodwill. Ge’nei’vat da’at goes beyond lying. Deliberately creating false impressions about one’s behavior is also subsumed in this prohibition—whether in words or in deeds.  The Tosefta reads:

There are seven kinds of thieves.

(1)   The first among them is the one who steals the minds of people.

(2)  He who urges his friend to come as his guest, but in his heart does not really wish to invite him.

(3)  One who excessively offers gifts to his friend, knowing that the latter will not accept them;

(4)  One who opens up barrels for another, that were sold to a shopkeeper;

(5)  Anyone who falsifies measures.

(6)  One who secretly pads scales . . .

(7)  Anyone who deceives people is called a thief, as it is written: “And Absalom stole the hearts of the men of Israel” (2 Samuel, 15:6).[4]

As a case in point, the sages believed that there are seven types of thieves and, of these, the most serious offenders is someone who “steals the minds” of people.

The Talmud  discusses the principle of ge’nei’vat da’at  and cites the 3rd century scholar named  Shmuel, who taught: It is forbidden to steal the mind of anyone, even idolaters.” [5] The Talmud observes that Shmuel never expressly stated such a law, but it was deduced from an incident in which his attendant duped a heathen ferryman. Scholars were not sure what exactly happened, but here is how the discussion went: One view asserts that Shmuel once told his attendant to give the ferryman a chicken and the latter thought he was getting a kosher chicken but was actually given one that was unkosher. Another opinion is that the ferryman thought he was receiving undiluted wine but was instead given diluted wine.[6]

The “Lemon Laws” of our country certainly have strong antecedents in biblical and rabbinical laws that demand personal integrity and moral excellence.

After the death of his father, the Israeli rabbinate considered him as a possible successor for his the Sephardic position of Chief Rabbi. However, when the police began Examining alleged issues involving a breach of trust, and other sundry ethical violations, they forced him to withdraw his candidacy. “Yosef was a candidate for Sefardi chief rabbi but his candidacy ended when police began investigating him for alleged breach of public trust and an illegal conflict of interest. Yosef allegedly coerced store and restaurant owners to get kosher supervision from a private kosher supervision company started by his late father and run by one of Yosef’s brothers” (JPost). [7]

So what can we deduce from all of this?

Shakespeare perhaps said it best:

“The devil can cite Scripture for his purpose.

An evil soul producing holy witness

Is like a villain with a smiling cheek,

A goodly apple rotten at the heart.

O, what a goodly outside falsehood hath!”

  • William Shakespeare, The Merchant of Venice, I, iii, 93);

When one examines the religious politics and chicanery in Israel today, we could also add, “The devil can cite Talmud, Halacha, Midrash, Hassidut and Kabbalah as well.”

When one considers the amount of fraud that is publicized on the Web involving kickbacks, racketeering, and other numerous criminal offenses, the Rabbi Yosef embarrasses his community as well as every non-Orthodox Jewish community. If we wish to become a light unto the nations of the world, then we had better start becoming a light to ourselves first.




[2]  Regarding theft:

Exod. 21:16. 22:1-5, 7-13. Le 6:1-7. 19:11, 13, 35-37. 25:17. Deut 5:19. 19:14. 23:24, 25. 24:7. 25:13-16. 27:17. Josh 7:24, 25. Job 20:19-22. 24:2. Ps 37:21. 50:18. 62:10. Pro. 1:13-15. 3:27. 6:30, 31. 11:1. 16:11. 20:10, 23. 22:22, 28. 23:10. 28:24. 29:24. 30:8, 9. Isa 1:23. 61:8. Jer 5:26-29. 7:8-11. 22:13. Ezek 33:15. 45:10. Hos. 4:2. 12:7. Amos 3:10. 5:11, 12. 8:4-6. Mic. 6:10, 11. 7:3. Zach. 5:3, 4. Mal. 3:5,

Regarding Fraud and Dishonesty, see Lev. 19:11; Lev. 19:35–36; Lev. 25:14; Deut. 19:14; Deut. 25:13–16; Deut. 27:17; Job 24:2; Ps. 37:21; Prov. 11:1; Prov. 11:26; Prov. 16:11; Prov. 20:14, 17, 23; Prov. 22:28; Prov. 23:10–11; Hos. 12:7–8, 14; Amos 8:5–6; Mic. 6:10–13; Hab. 2:6.

Regarding the sins involving hypocrisy: Job 17:1, 3–9; Ps. 5:9; Ps. 26:4; Ps. 50:16–23; Isa. 29:13; Isa. 32:5–8; Isa. 48:1; Isa. 58:1–2; Ezek. 33:31–32.

Lying and Falsity:  Exod. 20:16; Job 15:35; Job 21:34; Job 24:25; Job 31:33; Ps. 5:6; Ps. 31:18; Ps. 50:19; Ps. 52:2–4; Ps. 55:20–21; Ps. 62:4; Ps. 63:11; Ps. 116:11; Ps. 119:69; Ps. 120:3–4; Prov. 2:12–15; Prov. 6:16–17, 19; Prov. 10:18; Prov. 12:22; Prov. 17:4; Prov. 19:22; Prov. 21:6; Prov. 26:23–26; Isa. 59:2–3; Jer. 5:2; Jer. 7:8; Jer. 9:3–6; Hos. 4:1–2; Hos. 11:12; Zech. 8:16–17.

Causing others  to sin: Num. 25:1–2; Neh. 6:13; Prov. 1:10–16; Prov. 4:14–15, 25–27; Prov. 16:29; Prov. 28:10; Isa. 33:15–16.

[3] BT Megilah 15a, Mishnah Avot 6:6 

[4] Tosefta Bava Kama 7:8; it is shocking that some medieval scholars think that the prohibition against ge’nei’vat da’at is not Biblical but rabbinical (Semak, 262). Such rationalizations only create scandal in the Jewish community and it also reenforces the impression that all Jews are dishonest in business.

[5.] BT Chullin 94a-b.

[6] Tosefta Bava Kama 7:3.



  1. Yochanan Lavie  March 30, 2014

    Maybe this is why the chareidim don’t want students to learn literature. Literature makes one think for oneself, and therefore question the “wisdom” of dubious “sages” such as Yosef, fils.


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