Repentance (Hebrew: , literally, "return", pronounced tshuva or teshuva) is one element of atoning for sin in Judaism. Judaism recognizes that everybody sins on occasion, but that people can stop or minimize those occasions in the future by repenting for past transgressions. Thus, the primary purpose of repentance in Judaism is ethical self transformation.
A Jewish penitent is traditionally known as a baal teshuva (lit., "master of repentance" or "master of return") (Hebrew: ; for a woman: ? , baalat teshuva; plural: ? , baalei teshuva). An alternative modern term is hozer beteshuva (? ) (lit., "returning in repentance"). "In a place where baalei teshuva stand", according to halakha, "even the full-fledged righteous do not stand."
One should repent immediately. A parable is told in the Talmud (Shabbat 153a) that Rabbi Eliezer taught his disciples, "Repent one day before your death." The disciples politely questioned whether one can know the day of one's death, so Rabbi Eliezer answered, "All the more reason, therefore, to repent today, lest one die tomorrow." Because of Judaism's understanding of the annual process of Divine Judgment, Jews believe that God is especially open to repentance during period from the beginning of the month of Ellul through the High Holiday season, i. e., Rosh HaShanah (the Day of Judgement), Aseret Yimei Teshuva (the Ten Days of Repentance), Yom Kippur (the Day of Atonement), and, according to Kabbalah, Hoshana Rabbah. Another good time to repent is toward the end of one's life.
How to repent
Numerous guides to the repentance process can be found in rabbinical literature. See especially Maimonides' Rules of Repentance in the Mishneh Torah.
remembering the sin for the rest of one's life;
refraining from committing the same sin if the opportunity presents itself again;
teaching others not to sin.
Forsaking the sin
The second of Rabbenu Yonah's "Principles of Repentance" is "forsaking the sin" (Hebrew?-?, azivat-hachet). After regretting the sin (Rabbenu Yonah's first principle), the penitent must resolve never to repeat the sin. However, Judaism recognizes that the process of repentance varies from penitent to penitent and from sin to sin. For example, a non-habitual sinner often feels the sting of the sin more acutely than the habitual sinner. Therefore, a non-habitual sinner will have an easier time repenting, because he or she will be less likely to repeat the sinful behavior.
The case of the habitual sinner is more complex. If the habitual sinner regrets his or her sin at all, that regret alone clearly does not translate into a change in behavior. In such a case, Rabbi Nosson Scherman recommends devising "a personal system of reward and punishment" and to avoid circumstances which may cause temptation toward the relevant sin.Rabbi Judah taught, "Who is the penitent whose repentance ascends until the Throne of Glory? -- one who is tested and emerges guiltless" (Yoma 86b).Maimonides interpreted this statement to mean that the sign of a true penitent is one who commits a sin and is later given the opportunity to commit exactly the same sin, yet one chooses not to ("Laws of Repentance" 2:1).
When the Temple in Jerusalem was active, a Jew was required to bring various sacrifices for certain types of sins, and to perform a version of the viduy confession ritual as part of the sacrificial ritual. Yet, even when the Holy Temple still stood, the mere act of bringing an offering never automatically caused God to forgive someone for their sins. The Tanakh (Hebrew Bible) teaches:
"In sacrifice and offering, you have not delighted, but you have given me an open ear. Burnt offering and sin offering you have not required." (Psalms 40:6)
"For you will not delight in sacrifice, or I would give it; you will not be pleased with a burnt offering. The sacrifices of God are a broken spirit; a broken and contrite heart, O God, you will not despise." (Psalms 51:16-17)
"For I desire steadfast love, and not sacrifice, the knowledge of God, rather than burnt offerings." (Hosea 6:6)
"Take with you words and return to the LORD; say to him, 'Take away all iniquity; accept what is good, and we will pay with bulls the vows of our lips.'" (Hosea 14:2)
Many places Rabbinic literature emphasizes that performing charitable deeds, praying, and studying Torah are more meritorious than animal sacrifice, and that the former can replace animal sacrifice when the Temple is not active:
"Rabbi Yochanan ben Zakkai was walking with ... Rabbi Yehoshua, ... after the destruction of the Temple. Rabbi Yehoshua looked at the Temple ruins and said, ' ... The place that atoned for the sins of the people Israel lies in ruins!' Then Rabbi Yohannan ben Zakkai spoke to him these words of comfort: '... We can still gain ritual atonement through deeds of loving-kindness.'" (MidrashAvot D'Rabbi Nathan 4:5)
"Rabbi Elazar said: Doing righteous deeds of charity is greater than offering all of the sacrifices, as it is written: 'Doing charity and justice is more desirable to the Lord than sacrifice' (Proverbs21:3)." (Babylonian Talmud, Sukkah 49)
"Rabbi Shmuel bar Nahmani said: The Holy One Said to David: 'Solomon, your Son is building the Temple. Is this not for the purpose of offering sacrifices there? The justice and righteousness of your actions are more precious to me than sacrifices.' And how do we know this? 'To do what is right and just is more desirable to Adonai than sacrifice.' (Proverbs 21:3)" (Talmud Yerushalmi, B'rakhot 2.1)
"One who does teshuvah is considered as if he went to Jerusalem, rebuilt the Temple, erected the altar, and offered all the sacrifices ordained by the Torah. [For the Psalm says], 'The sacrifices of God are a broken spirit; a broken and contrite heart, O God, You will not despise [51:19]'" (Leviticus Rabbah 7:2 (Midrash))
"Rava said: Whoever studies Torah does not need [to sacrifice offerings] (Menahot 110a) ... Said God: In this world, a sacrifice effected their atonement, but in the World to Come, I will forgive your sins without a sacrifice." (Midrash Tanhuma Shemini, paragraph 10)
"Even if a man has sinned his whole life, and repents on the day of his death, all his sins are forgiven him" (Maimonides, Yad, Teshuvah 2:1)
^ abTelushkin, Joseph. A Code of Jewish Ethics: Volume 1 - You Shall Be Holy. New York: Bell Tower, 2006. p. 152-173.
^Koren Talmud Bavli: Berakhot 34b. Editor-in-chief, Tzvi Hersh Weinreb.
Koren Publishers Jerusalem, 2012. See commentary by Adin Evan-Israel Steinsaltz on p. 230.
^ abcScherman, Nosson. "An Overview - Day of Atonement and Purity." An Overview. The Complete ArtScroll Machzor: Yom Kippur. By Scherman. Trans. Scherman. Brooklyn, NY: Mesorah Publications, 2008. XIV-XXII.
^Thus, "He guards Lovingkindness for thousands"-- even though a person has sinned thousands of times and made thousands of blemishes, God can and will forgive him, i.e. all sins (if he repents) (Rebbe Nachman of Breslov. Likutey Halakhot I, p. 1b)
Theological dictionary of the Old Testament: Vol.14 p473 G. Johannes Botterweck, Helmer Ringgren, Heinz-Josef Fabry - 2004 "The noun t'suba occurs 4 times in the Dtr History, twice in the Chronicler's History and in Job."
Jacob J. Petuchowski, The Concept of 'Teshuva' in the Bible and Talmud, Judaism 17 (1968), 175-185.