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Mishnah Yoma 7:1

The high priest [then] came to read. If he wished to read in linen garments, he reads, and if not he reads in his own white cloak. The synagogue attendant would take a Torah scroll and give it to the head of the synagogue, and the head of the synagogue gives it to deputy high priest, and the deputy high priest gives it to the high priest, and the high priest stands and receives it, and reads, [section] beginning] “After the death …” (Leviticus 16:1-34) and “But on the tenth…” (Leviticus 23:26-32). Then he would roll up the Torah scroll and put it in his bosom and say, “More than what I have read out before you is written here.” And “On the tenth …” (Numbers 29:7-11) which is in the Book of Numbers he recites by heart. And he recites on it eight benedictions: “For the law”, “For the Temple service,” “For thanksgiving,” “For the forgiveness of sins” and “For the Temple” on its own, and “For Israel” on its own and “For Jerusalem” on its own, “For the priests” on their own and “For the rest of the prayer.”

בָּא לוֹ כֹהֵן גָּדוֹל לִקְרוֹת. אִם רָצָה לִקְרוֹת בְּבִגְדֵי בוּץ, קוֹרֵא. וְאִם לֹא, קוֹרֵא בְאִצְטְלִית לָבָן מִשֶּׁלּוֹ. חַזַּן הַכְּנֶסֶת נוֹטֵל סֵפֶר תּוֹרָה וְנוֹתְנוֹ לְרֹאשׁ הַכְּנֶסֶת, וְרֹאשׁ הַכְּנֶסֶת נוֹתְנוֹ לַסְּגָן, וְהַסְּגָן נוֹתְנוֹ לְכֹהֵן גָּדוֹל, וְכֹהֵן גָּדוֹל עוֹמֵד וּמְקַבֵּל וְקוֹרֵא עוֹמֵד, וְקוֹרֵא אַחֲרֵי מוֹת וְאַךְ בֶּעָשׂוֹר. וְגוֹלֵל סֵפֶר תּוֹרָה וּמַנִּיחוֹ בְחֵיקוֹ, וְאוֹמֵר, יוֹתֵר מִמַּה שֶּׁקָּרָאתִי לִפְנֵיכֶם כָּתוּב כָּאן, וּבֶעָשׂוֹר שֶׁבְּחֻמַּשׁ הַפְּקוּדִים קוֹרֵא עַל פֶּה, וּמְבָרֵךְ עָלֶיהָ שְׁמֹנֶה בְרָכוֹת, עַל הַתּוֹרָה, וְעַל הָעֲבוֹדָה, וְעַל הַהוֹדָאָה, וְעַל מְחִילַת הֶעָוֹן, וְעַל הַמִּקְדָּשׁ בִּפְנֵי עַצְמוֹ, וְעַל יִשְׂרָאֵל בִּפְנֵי עַצְמָן וְעַל יְרוּשָׁלַיִם בִּפְנֵי עַצְמָהּ וְעַל הַכֹּהֲנִים בִּפְנֵי עַצְמָן וְעַל שְׁאָר הַתְּפִלָּה:

Jerusalem Talmud, Halakhah 7:1 (on Mishnah 7:1–2)

Mishnah Yoma 7:2

He who sees the high priest when he reads does not see the bull and the goat that are being burned, and he that sees the bull and the goat that are being burned does not see the high priest when he reads, not because he was not permitted but because the distance apart was great and both rites were performed at the same time.

הָרוֹאֶה כֹהֵן גָּדוֹל כְּשֶׁהוּא קוֹרֵא, אֵינוֹ רוֹאֶה פַר וְשָׂעִיר הַנִּשְׂרָפִים. וְהָרוֹאֶה פַר וְשָׂעִיר הַנִּשְׂרָפִים, אֵינוֹ רוֹאֶה כֹהֵן גָּדוֹל כְּשֶׁהוּא קוֹרֵא. וְלֹא מִפְּנֵי שֶׁאֵינוֹ רַשַּׁאי, אֶלָּא שֶׁהָיְתָה דֶרֶךְ רְחוֹקָה, וּמְלֶאכֶת שְׁנֵיהֶן שָׁוָה כְאֶחָת:

The Jerusalem Talmud discusses this mishnah with 7:1 above.

Mishnah Yoma 7:3

If he read in the garments of linen, he would then sanctify his hands and feet, strip off his clothes, go down and immerse himself, come up and dry himself. They brought him the golden clothes, he put them on, sanctified his hands and feet, went out, offered up his own ram and the ram of the people, and the seven unblemished, one-year-old-lambs, the words of Rabbi Eliezer. Rabbi Akiba said: these were offered up together with the morning tamid of the morning, The bull for the whole burnt offering and the goat which is offered up outside were offered up together with the dusk tamid.

אִם בְּבִגְדֵי בוּץ קוֹרֵא, קִדֵּשׁ יָדָיו וְרַגְלָיו, פָּשַׁט יָרַד וְטָבַל, עָלָה וְנִסְתַּפֵּג. הֵבִיאוּ לוֹ בִגְדֵי זָהָב, וְלָבַשׁ, וְקִדֵּשׁ יָדָיו וְרַגְלָיו, וְיָצָא וְעָשָׂה אֶת אֵילוֹ וְאֶת אֵיל הָעָם, וְאֶת שִׁבְעַת כְּבָשִׂים תְּמִימִים בְּנֵי שָׁנָה, דִּבְרֵי רַבִּי אֱלִיעֶזֶר. רַבִּי עֲקִיבָא אוֹמֵר, עִם תָּמִיד שֶׁל שַׁחַר הָיוּ קְרֵבִין, וּפַר הָעוֹלָה וְשָׂעִיר הַנַּעֲשֶׂה בַחוּץ הָיוּ קְרֵבִין עִם תָּמִיד שֶׁל בֵּין הָעַרְבָּיִם:

Jerusalem Talmud, Halakhah 7:2 (on Mishnah 7:3–4)

Mishnah Yoma 7:4

He then sanctified his hands and feet, stripped off his clothes, went down and immersed himself, came up and dried himself. They brought him the white clothes, he put them on and sanctified his hands and his feet. Then he went in to bring out the ladle and the fire-pan. He then sanctified his hands and feet, stripped off his clothes, went down and immersed himself, came up and dry himself. They brought him the golden clothes, he put them on, sanctified his hands and feet, and went in to burn up the dusk incense, and takes care of the lamp. He sanctified his hands and feet and stripped, went down, immersed himself, came up and dried himself. They brought him his own clothes and he put them on. And they would accompany him to his house. And he would make a day of festivity for his friends whenever he came out of the Holy [of Holies] in peace.

קִדֵּשׁ יָדָיו וְרַגְלָיו, וּפָשַׁט וְיָרַד וְטָבַל וְעָלָה וְנִסְתַּפֵּג. הֵבִיאוּ לוֹ בִגְדֵי לָבָן, וְלָבַשׁ, וְקִדֵּשׁ יָדָיו וְרַגְלָיו. נִכְנַס לְהוֹצִיא אֶת הַכַּף וְאֶת הַמַּחְתָּה. קִדֵּשׁ יָדָיו וְרַגְלָיו, וּפָשַׁט וְיָרַד וְטָבָל, עָלָה וְנִסְתַּפֵּג. הֵבִיאוּ לוֹ בִגְדֵי זָהָב וְלָבַשׁ, וְקִדֵּשׁ יָדָיו וְרַגְלָיו, וְנִכְנַס לְהַקְטִיר קְטֹרֶת שֶׁל בֵּין הָעַרְבַּיִם וּלְהֵטִיב אֶת הַנֵּרוֹת, וְקִדֵּשׁ יָדָיו וְרַגְלָיו, וּפָשַׁט. הֵבִיאוּ לוֹ בִגְדֵי עַצְמוֹ, וְלָבַשׁ. וּמְלַוִּין אוֹתוֹ עַד בֵּיתוֹ. וְיוֹם טוֹב הָיָה עוֹשֶׂה לְאוֹהֲבָיו בְּשָׁעָה שֶׁיָּצָא בְשָׁלוֹם מִן הַקֹּדֶשׁ:

The Jerusalem Talmud discusses this mishnah with 7:3 above.

Mishnah Yoma 7:5

The high priest performs the service in eight pieces of clothing, and the common priest in four: in tunic, breeches, a headdress, and a sash. The high priest adds the breastpiece, the ephod, the robe and the frontlet. In these were the Urim and Tummim inquired of. But they were not inquired of except by the king, by the head of the court or by one whom the community needs.

כֹּהֵן גָּדוֹל מְשַׁמֵּשׁ בִּשְׁמֹנָה כֵלִים. וְהַהֶדְיוֹט בְּאַרְבָּעָה, בְּכֻתֹּנֶת וּמִכְנָסַיִם וּמִצְנֶפֶת וְאַבְנֵט. מוֹסִיף עָלָיו כֹּהֵן גָּדוֹל, חשֶׁן וְאֵפוֹד וּמְעִיל וָצִיץ. בְּאֵלּוּ נִשְׁאָלִין בְּאוּרִים וְתֻמִּים. וְאֵין נִשְׁאָלִין אֶלָּא לַמֶּלֶךְ וּלְבֵית דִּין וּלְמִי שֶׁהַצִּבּוּר צָרִיךְ בּוֹ:

Jerusalem Talmud, Halakhah 7:3

The Mishnah: English translation: Joshua Kulp, Mishnah Yomit (Conservative Yeshiva), via Sefaria, licensed CC BY; changes made (line breaks, spacing, a typo, and Kulp's study notes removed from five mishnayot). Hebrew: Torat Emet 357, public domain; Bikkurim chapter 4 from Dan Be'eri's edition of the Kaufmann manuscript, public domain.

The Jerusalem Talmud: English translation and Hebrew/Aramaic text: Heinrich W. Guggenheimer, The Jerusalem Talmud: Edition, Translation, and Commentary (Berlin: De Gruyter, 1999-2015), via Sefaria, licensed CC BY 4.0; changes made (his footnotes and the page markers removed).