וְזָרַקְתִּ֧י עֲלֵיכֶ֛ם מַ֥יִם טְהוֹרִ֖ים וּטְהַרְתֶּ֑ם מִכֹּ֧ל טֻמְאוֹתֵיכֶ֛ם וּמִכָּל־גִּלּ֥וּלֵיכֶ֖ם אֲטַהֵ֥ר אֶתְכֶֽם׃
И я окроплю тебя чистой водой, и вы будете чисты; от всех ваших нечистот и от всех ваших идолов Я очистлю вас.
Mishnah Megillah
If Rosh Hodesh Adar falls on Shabbat the portion of shekalim is read [on that day]. If it falls in the middle of the week, it is read on the Shabbat before, and on the next Shabbat there is a break. On the second [of the special Shabbatot] they read “Zakhor;” On the third the portion of the red heifer; On the fourth “This month shall be for you;” On the fifth the regular order is resumed. They interrupt [the regular order] for anything: for Rosh Hodesh, for Hanukkah, for Purim, for fasts, for Ma’amadot, and for Yom HaKippurim.
Mishnah Yoma
One who says: I shall sin and repent, sin and repent, they do not afford him the opportunity to repent. [If one says]: I shall sin and Yom HaKippurim will atone for me, Yom HaKippurim does not effect atonement. For transgressions between man and God Yom HaKippurim effects atonement, but for transgressions between man and his fellow Yom HaKippurim does not effect atonement, until he has pacified his fellow. This was expounded by Rabbi Elazar b. Azariah: “From all your sins before the Lord you shall be clean” (Leviticus 16:30) for transgressions between man and God Yom HaKippurim effects atonement, but for transgressions between man and his fellow Yom HaKippurim does not effect atonement, until he has pacified his fellow. Rabbi Akiva said: Happy are you, Israel! Who is it before whom you become pure? And who is it that purifies you? Your Father who is in heaven, as it is said: “And I will sprinkle clean water upon you and you shall be clean” (Ezekiel 36:25). And it further says: “O hope (mikveh) of Israel, O Lord” (Jeremiah 17:13--just as a mikveh purifies the unclean, so too does he Holy One, blessed be He, purify Israel.