Atonement in Judaism is the process of causing a sin to be forgiven or pardoned. Judaism describes various means of receiving atonement for sin, that is, reconciliation with God and release from punishment. The main method of atonement is via repentance. Other means (e.g. Temple sacrifices, judicial punishments, and returning stolen property) may be involved in the atonement process, together with repentance.
A sin offering (Hebrew: קָרְבַּן חַטָּאת, korban ḥatat, IPA: [χaˈtat], lit: "purification offering") is a sacrificial offering described and commanded in the Torah (Lev. 4.1-35); it could be fine flour or a proper animal. A sin offering also occurs in 2 Chronicles 29:21 where seven bulls, seven rams, seven lambs and seven he-goats were sacrificed on the command of King Hezekiah for the kingdom, for the sanctuary, and for Judah. Like all types of sacrifices offered on the altar, the flour had to be unscented and the animal had to be completely unblemished. This offered sacrifice accompanied the important required core means of atonement for the committing of an unintentional transgression of a prohibition, that either has brought guilt upon the 'community of Israel' or the individual. This offering is brought during or after atonement for those transgressions that had been committed inadvertently, or in ignorance: intentional transgressions could only be absolved by other forms of atonement, or in severe cases kareth. It was distinct from the biblical guilt offering.
Yom Kippur (/ˌjɒm kɪˈpʊər, ˌjɔːm ˈkɪpər, ˌjoʊm-/ YOM kip-OOR, YAWM KIP-ər, YOHM-; Hebrew: יוֹם כִּפּוּר Yōm Kippūr [ˈjom kiˈpuʁ], lit. 'Day of Atonement') is the holiest day of the year in Judaism. It occurs annually on the 10th of Tishrei, corresponding to a date in late September or early October.
For traditional Jewish people, it is primarily centered on atonement and repentance. The day's main observances consist of full fasting and asceticism, both accompanied by extended prayer services (usually at synagogue) and sin confessions. Some minor Jewish denominations, such as Reconstructionist Judaism, focus less on sins and more on one's goals and accomplishments and setting yearly intentions.
Repentance (Hebrew: תשובה, romanized: tǝšūvā "return") 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.
Maimonides defines the essence of repentance as follows:
In Judaism, confession (Hebrew: וִדּוּי, romanized: vīddūy) is a step in the process of atonement during which a Jew admits to committing a sin before God. In sins between a Jew and God, the confession must be done without others present (The Talmud calls confession in front of another a show of disrespect). On the other hand, confession of sins done to another person may be done publicly, and in fact Maimonides calls such confession "immensely praiseworthy".
The confession of a sin in itself does not bring immediate forgiveness. Rather, it is one component of repentance in Judaism, which can lead to forgiveness.
