(א) וַיְדַבֵּ֥ר יְהֹוָ֖ה אֶל־מֹשֶׁ֥ה לֵּאמֹֽר׃ (ב) דַּבֵּר֙ אֶל־בְּנֵ֣י יִשְׂרָאֵ֔ל וְאָמַרְתָּ֖ אֲלֵהֶ֑ם אִ֣ישׁ אֽוֹ־אִשָּׁ֗ה כִּ֤י יַפְלִא֙ לִנְדֹּר֙ נֶ֣דֶר נָזִ֔יר לְהַזִּ֖יר לַֽיהֹוָֽה׃ (ג) מִיַּ֤יִן וְשֵׁכָר֙ יַזִּ֔יר חֹ֥מֶץ יַ֛יִן וְחֹ֥מֶץ שֵׁכָ֖ר לֹ֣א יִשְׁתֶּ֑ה וְכׇל־מִשְׁרַ֤ת עֲנָבִים֙ לֹ֣א יִשְׁתֶּ֔ה וַעֲנָבִ֛ים לַחִ֥ים וִיבֵשִׁ֖ים לֹ֥א יֹאכֵֽל׃ (ד) כֹּ֖ל יְמֵ֣י נִזְר֑וֹ מִכֹּל֩ אֲשֶׁ֨ר יֵעָשֶׂ֜ה מִגֶּ֣פֶן הַיַּ֗יִן מֵחַרְצַנִּ֛ים וְעַד־זָ֖ג לֹ֥א יֹאכֵֽל׃ (ה) כׇּל־יְמֵי֙ נֶ֣דֶר נִזְר֔וֹ תַּ֖עַר לֹא־יַעֲבֹ֣ר עַל־רֹאשׁ֑וֹ עַד־מְלֹ֨את הַיָּמִ֜ם אֲשֶׁר־יַזִּ֤יר לַיהֹוָה֙ קָדֹ֣שׁ יִהְיֶ֔ה גַּדֵּ֥ל פֶּ֖רַע שְׂעַ֥ר רֹאשֽׁוֹ׃ (ו) כׇּל־יְמֵ֥י הַזִּיר֖וֹ לַיהֹוָ֑ה עַל־נֶ֥פֶשׁ מֵ֖ת לֹ֥א יָבֹֽא׃ (ז) לְאָבִ֣יו וּלְאִמּ֗וֹ לְאָחִיו֙ וּלְאַ֣חֹת֔וֹ לֹא־יִטַּמָּ֥א לָהֶ֖ם בְּמֹתָ֑ם כִּ֛י נֵ֥זֶר אֱלֹהָ֖יו עַל־רֹאשֽׁוֹ׃ (ח) כֹּ֖ל יְמֵ֣י נִזְר֑וֹ קָדֹ֥שׁ ה֖וּא לַֽיהֹוָֽה׃
(1) יהוה spoke to Moses, saying: (2) Speak to the Israelites and say to them: If any men or women explicitly utter a nazirite’s vow, to set themselves apart for יהוה, (3) they shall abstain from wine and any other intoxicant; they shall not drink vinegar of wine or of any other intoxicant, neither shall they drink anything in which grapes have been steeped, nor eat grapes fresh or dried. (4) Throughout their term as nazirite, they may not eat anything that is obtained from the grapevine, even seeds or skin. (5) Throughout the term of their vow as nazirite, no razor shall touch their head; it shall remain consecrated until the completion of their term as nazirite of יהוה, the hair of their head being left to grow untrimmed. (6) Throughout the term that they have set apart for יהוה, they shall not go in where there is a dead person. (7) Even if their father or mother, or their brother or sister should die, they must not become defiled for any of them, since hair set apart for their God is upon their head: (8) throughout their term as nazirite they are consecrated to יהוה.
The practices from which a nazir/nazirah (or, more commonly in English, nazirite/naziritess) all have counterparts in which kohanim (priests) are to also avoid:
(ח) וַיְדַבֵּ֣ר יְהֹוָ֔ה אֶֽל־אַהֲרֹ֖ן לֵאמֹֽר׃ (ט) יַ֣יִן וְשֵׁכָ֞ר אַל־תֵּ֣שְׁתְּ ׀ אַתָּ֣ה ׀ וּבָנֶ֣יךָ אִתָּ֗ךְ בְּבֹאֲכֶ֛ם אֶל־אֹ֥הֶל מוֹעֵ֖ד וְלֹ֣א תָמֻ֑תוּ חֻקַּ֥ת עוֹלָ֖ם לְדֹרֹתֵיכֶֽם׃ (י) וּֽלְהַבְדִּ֔יל בֵּ֥ין הַקֹּ֖דֶשׁ וּבֵ֣ין הַחֹ֑ל וּבֵ֥ין הַטָּמֵ֖א וּבֵ֥ין הַטָּהֽוֹר׃ (יא) וּלְהוֹרֹ֖ת אֶת־בְּנֵ֣י יִשְׂרָאֵ֑ל אֵ֚ת כׇּל־הַ֣חֻקִּ֔ים אֲשֶׁ֨ר דִּבֶּ֧ר יְהֹוָ֛ה אֲלֵיהֶ֖ם בְּיַד־מֹשֶֽׁה׃ {פ}
(8) And יהוה spoke to Aaron, saying: (9) Drink no wine or other intoxicant, you or your sons, when you enter the Tent of Meeting, that you may not die. This is a law for all time throughout the ages, (10) for you must distinguish between the sacred and the profane, and between the impure and the pure; (11) and you must teach the Israelites all the laws which יהוה has imparted to them through Moses.
(א) וַיֹּ֤אמֶר יְהֹוָה֙ אֶל־מֹשֶׁ֔ה אֱמֹ֥ר אֶל־הַכֹּהֲנִ֖ים בְּנֵ֣י אַהֲרֹ֑ן וְאָמַרְתָּ֣ אֲלֵהֶ֔ם לְנֶ֥פֶשׁ לֹֽא־יִטַּמָּ֖א בְּעַמָּֽיו׃ (ב) כִּ֚י אִם־לִשְׁאֵר֔וֹ הַקָּרֹ֖ב אֵלָ֑יו לְאִמּ֣וֹ וּלְאָבִ֔יו וְלִבְנ֥וֹ וּלְבִתּ֖וֹ וּלְאָחִֽיו׃ (ג) וְלַאֲחֹת֤וֹ הַבְּתוּלָה֙ הַקְּרוֹבָ֣ה אֵלָ֔יו אֲשֶׁ֥ר לֹֽא־הָיְתָ֖ה לְאִ֑ישׁ לָ֖הּ יִטַּמָּֽא׃ (ד) לֹ֥א יִטַּמָּ֖א בַּ֣עַל בְּעַמָּ֑יו לְהֵ֖חַלּֽוֹ׃ (ה) לֹֽא־[יִקְרְח֤וּ] (יקרחה) קׇרְחָה֙ בְּרֹאשָׁ֔ם וּפְאַ֥ת זְקָנָ֖ם לֹ֣א יְגַלֵּ֑חוּ וּבִ֨בְשָׂרָ֔ם לֹ֥א יִשְׂרְט֖וּ שָׂרָֽטֶת׃ (ו) קְדֹשִׁ֤ים יִהְיוּ֙ לֵאלֹ֣הֵיהֶ֔ם וְלֹ֣א יְחַלְּל֔וּ שֵׁ֖ם אֱלֹהֵיהֶ֑ם כִּי֩ אֶת־אִשֵּׁ֨י יְהֹוָ֜ה לֶ֧חֶם אֱלֹהֵיהֶ֛ם הֵ֥ם מַקְרִיבִ֖ם וְהָ֥יוּ קֹֽדֶשׁ׃
(1) יהוה said to Moses: Speak to the priests, the sons of Aaron, and say to them: None shall defile himself for any [dead] person among his kin, (2) except for the relatives that are closest to him: his mother, his father, his son, his daughter, and his brother; (3) also for a virgin sister, close to him because she has not become someone’s [wife], for her he may defile himself. (4) But he shall not defile himself as a kinsman by marriage, and so profane himself. (5) They shall not shave smooth any part of their heads, or cut the side-growth of their beards, or make gashes in their flesh. (6) They shall be holy to their God and not profane the name of their God; for they offer יהוה’s offerings by fire, the food of their God, and so must be holy.
And what is a nazir/nazirah to do upon the completion of this time period?
(יג) וְזֹ֥את תּוֹרַ֖ת הַנָּזִ֑יר בְּי֗וֹם מְלֹאת֙ יְמֵ֣י נִזְר֔וֹ יָבִ֣יא אֹת֔וֹ אֶל־פֶּ֖תַח אֹ֥הֶל מוֹעֵֽד׃ (יד) וְהִקְרִ֣יב אֶת־קׇרְבָּנ֣וֹ לַיהֹוָ֡ה כֶּ֩בֶשׂ֩ בֶּן־שְׁנָת֨וֹ תָמִ֤ים אֶחָד֙ לְעֹלָ֔ה וְכַבְשָׂ֨ה אַחַ֧ת בַּת־שְׁנָתָ֛הּ תְּמִימָ֖ה לְחַטָּ֑את וְאַֽיִל־אֶחָ֥ד תָּמִ֖ים לִשְׁלָמִֽים׃ (טו) וְסַ֣ל מַצּ֗וֹת סֹ֤לֶת חַלֹּת֙ בְּלוּלֹ֣ת בַּשֶּׁ֔מֶן וּרְקִיקֵ֥י מַצּ֖וֹת מְשֻׁחִ֣ים בַּשָּׁ֑מֶן וּמִנְחָתָ֖ם וְנִסְכֵּיהֶֽם׃ (טז) וְהִקְרִ֥יב הַכֹּהֵ֖ן לִפְנֵ֣י יְהֹוָ֑ה וְעָשָׂ֥ה אֶת־חַטָּאת֖וֹ וְאֶת־עֹלָתֽוֹ׃ (יז) וְאֶת־הָאַ֜יִל יַעֲשֶׂ֨ה זֶ֤בַח שְׁלָמִים֙ לַֽיהֹוָ֔ה עַ֖ל סַ֣ל הַמַּצּ֑וֹת וְעָשָׂה֙ הַכֹּהֵ֔ן אֶת־מִנְחָת֖וֹ וְאֶת־נִסְכּֽוֹ׃ (יח) וְגִלַּ֣ח הַנָּזִ֗יר פֶּ֛תַח אֹ֥הֶל מוֹעֵ֖ד אֶת־רֹ֣אשׁ נִזְר֑וֹ וְלָקַ֗ח אֶת־שְׂעַר֙ רֹ֣אשׁ נִזְר֔וֹ וְנָתַן֙ עַל־הָאֵ֔שׁ אֲשֶׁר־תַּ֖חַת זֶ֥בַח הַשְּׁלָמִֽים׃ (יט) וְלָקַ֨ח הַכֹּהֵ֜ן אֶת־הַזְּרֹ֣עַ בְּשֵׁלָה֮ מִן־הָאַ֒יִל֒ וְֽחַלַּ֨ת מַצָּ֤ה אַחַת֙ מִן־הַסַּ֔ל וּרְקִ֥יק מַצָּ֖ה אֶחָ֑ד וְנָתַן֙ עַל־כַּפֵּ֣י הַנָּזִ֔יר אַחַ֖ר הִֽתְגַּלְּח֥וֹ אֶת־נִזְרֽוֹ׃ (כ) וְהֵנִיף֩ אוֹתָ֨ם הַכֹּהֵ֥ן ׀ תְּנוּפָה֮ לִפְנֵ֣י יְהֹוָה֒ קֹ֤דֶשׁ הוּא֙ לַכֹּהֵ֔ן עַ֚ל חֲזֵ֣ה הַתְּנוּפָ֔ה וְעַ֖ל שׁ֣וֹק הַתְּרוּמָ֑ה וְאַחַ֛ר יִשְׁתֶּ֥ה הַנָּזִ֖יר יָֽיִן׃ (כא) זֹ֣את תּוֹרַ֣ת הַנָּזִיר֮ אֲשֶׁ֣ר יִדֹּר֒ קׇרְבָּנ֤וֹ לַֽיהֹוָה֙ עַל־נִזְר֔וֹ מִלְּבַ֖ד אֲשֶׁר־תַּשִּׂ֣יג יָד֑וֹ כְּפִ֤י נִדְרוֹ֙ אֲשֶׁ֣ר יִדֹּ֔ר כֵּ֣ן יַעֲשֶׂ֔ה עַ֖ל תּוֹרַ֥ת נִזְרֽוֹ׃ {פ}
(13) This is the ritual for the nazirite: On the day that the term as nazirite is completed, the person shall be brought to the entrance of the Tent of Meeting. (14) As an offering to יהוה that person shall present: one male lamb in its first year, without blemish, for a burnt offering; one ewe lamb in its first year, without blemish, for a sin offering; one ram without blemish for an offering of well-being; (15) a basket of unleavened cakes of choice flour with oil mixed in, and unleavened wafers spread with oil; and the proper meal offerings and libations. (16) The priest shall present them before יהוה and offer the sin offering and the burnt offering. (17) He shall offer the ram as a sacrifice of well-being to יהוה, together with the basket of unleavened cakes; the priest shall also offer the meal offerings and the libations. (18) The nazirite shall then shave the consecrated hair, at the entrance of the Tent of Meeting, and take those locks of consecrated hair and put them on the fire that is under the sacrifice of well-being. (19) The priest shall take the shoulder of the ram when it has been boiled, one unleavened cake from the basket, and one unleavened wafer, and place them on the hands of the nazirite after the consecrated hair has been shaved. (20) The priest shall elevate them as an elevation offering before יהוה; and this shall be a sacred donation for the priest, in addition to the breast of the elevation offering and the thigh of gift offering. After that the nazirite may drink wine. (21) Such is the obligation of a nazirite; except that those who vow an offering to יהוה of what they can afford, beyond their nazirite requirements, must do exactly according to the vow that they have made beyond their obligation as nazirites.
וכפר עליו מאשר חטא על הנפש (תענית י"א וש"נ) וכי על איזו נפש חטא בה שצריך כפרה, על שציער עצמו מן היין. והלא דברים קל וחומר ומה אם המצער נפשו מן היין צריך כפרה, קל וחומר למצער נפשו (על כל) דבר.
"and he shall atone for him for having sinned against the soul": Now against which soul did he sin that he needs atonement? (His sin is) that he deprived himself of wine. Now does this not follow a fortiori, viz.: If one who deprives himself of wine needs atonement, how much more so, one who deprives himself of everything (by fasting)!