ויקרא, פרק ט״ז, פסוק ל׳

Yom Kippur is established for all generations as a dedicated time for forgiveness and the cleansing of sins. This process involves two complementary layers: achieving atonement for the sinful act itself, and attaining an internal purity of the soul. Commentators present different perspectives on what actually facilitates this atonement. One approach suggests that the High Priest is the primary agent, securing forgiveness for the people through his dedicated service and sacrifices [ספורנו, שד״ל, ביאור יש״ר, אבן עזרא, רד״צ הופמן]. Conversely, a broad consensus maintains that the inherent holiness of the day itself is what brings about atonement. According to this view, even in the absence of a Temple and sacrifices, the very essence of Yom Kippur secures forgiveness, with the fasting and cessation of work serving to awaken a person to repentance [רלב״ג, מלבי״ם, רש״ר הירש, תורה תמימה, אדרת אליהו, חומש קה״ת].

The promise of being cleansed from all sins is comprehensive. It encompasses every type of wrongdoing, to the point that even intentional sins are treated on this day as though they were committed by mistake [אבן עזרא, נתינה לגר, שפתי כהן]. However, there are varying degrees of atonement depending on the severity of the transgression. While minor offenses are forgiven immediately, more severe transgressions, such as those that carry the penalty of being spiritually cut off or involve the desecration of God's name, require a longer process. In these cases, the atonement of Yom Kippur must be supplemented by suffering or even death to finalize the spiritual cleansing [פני דוד, תורה תמימה, חומש קה״ת].

Achieving true purity requires an active partnership between humanity and the Divine. While atonement involves God withholding punishment and removing the spiritual stain, purity demands human initiative. A person must first purify themselves through sincere repentance, confession, and regret. Only after this human effort does God complete the process, fully refining the soul [כלי יקר, העמק דבר, הכתב והקבלה]. This resulting purity is not merely the removal of sin, but a complete spiritual rebirth. It restores a person's moral freedom and possesses the power to transform intentional sins into radiant merits [רש״ר הירש, הכתב והקבלה]. Ultimately, this day reveals the essential, unbreakable bond between the human soul and its Creator, a connection that is never completely severed [חומש קה״ת].

The scope of this forgiveness is specifically directed toward transgressions committed against God. The primary approach among commentators is that Yom Kippur only atones for sins between humans and the Divine. Offenses committed against another person are not forgiven until the offender actively appeases the one they have wronged [רבנו בחיי, תורה תמימה, מלבי״ם, חזקוני, רד״צ הופמן]. Nevertheless, every interpersonal sin also contains an element of rebellion against a Divine command. Yom Kippur successfully atones for this heavenly aspect of the sin, though the practical obligation to seek forgiveness and return anything stolen remains entirely in force [נחל קדומים]. Interestingly, the very moment a person makes a sincere decision to return stolen property, they are considered righteous, allowing the day to bring them atonement [חומת אנך]. Furthermore, the day provides cleansing for hidden sins and underlying doubts that a person may be completely unaware of, which are known to God alone [שד״ל, תורה תמימה, רד״צ הופמן]. Finally, this absolute state of purity is fully realized only when the entire community stands united in peace, free from the fractures of everyday disputes [כלי יקר].