סנהדרין ב׳Sanhedrin 2

Mishnah 1א׳

כֹּהֵן גָּדוֹל דָּן וְדָנִין אוֹתוֹ, מֵעִיד וּמְעִידִין אוֹתוֹ, חוֹלֵץ וְחוֹלְצִין לְאִשְׁתּוֹ, וּמְיַבְּמִין אֶת אִשְׁתּוֹ, אֲבָל הוּא אֵינוֹ מְיַבֵּם, מִפְּנֵי שֶׁהוּא אָסוּר בָּאַלְמָנָה. מֵת לוֹ מֵת, אֵינוֹ יוֹצֵא אַחַר הַמִּטָּה, אֶלָּא הֵן נִכְסִין וְהוּא נִגְלֶה, הֵן נִגְלִין וְהוּא נִכְסֶה, וְיוֹצֵא עִמָּהֶן עַד פֶּתַח הָעִיר, דִּבְרֵי רַבִּי מֵאִיר. רַבִּי יְהוּדָה אוֹמֵר, אֵינוֹ יוֹצֵא מִן הַמִּקְדָּשׁ, שֶׁנֶּאֱמַר (ויקרא כא) וּמִן הַמִּקְדָּשׁ לֹא יֵצֵא. וּכְשֶׁהוּא מְנַחֵם אֲחֵרִים, דֶּרֶךְ כָּל הָעָם עוֹבְרִין בָּזֶה אַחַר זֶה וְהַמְמֻנֶּה מְמַצְּעוֹ בֵּינוֹ לְבֵין הָעָם. וּכְשֶׁהוּא מִתְנַחֵם מֵאֲחֵרִים, כָּל הָעָם אוֹמְרִים לוֹ אָנוּ כַפָּרָתְךָ, וְהוּא אוֹמֵר לָהֶן תִּתְבָּרְכוּ מִן הַשָּׁמָיִם. וּכְשֶׁמַּבְרִין אוֹתוֹ, כָּל הָעָם מְסֻבִּין עַל הָאָרֶץ וְהוּא מֵסֵב עַל הַסַּפְסָל:

The High Priest may judge and be judged [himself]; may testify and others may testify against him; may perform chalitzah [declination of levirate marriage] and others may perform chalitzah for his widow; and others may marry her through levirate marriage, but he may not marry another through levirate marriage, because he is forbidden to marry a widow. [When his relative] dies, he may not follow the bier; rather, when they are concealed [from his view] he may be present, and once they appear he must be concealed [from their view], and he may follow them [in this manner] until the opening [gates] of the city. These are the words of Rabbi Meir. Rabbi Yehudah says, he may not leave from the Temple, as it says, (Leviticus 21:12) "And from the Temple, he may not leave." When he comforts other [mourners], it is the custom that all the people pass by one after one, and the appointed [substitute High Priest] interposes himself between [the High Priest] and the people. When he is being comforted by others, all the people say to him, "We are your atonement," and he says to them, "From heaven shall you be blessed." And when he is fed in comfort, all the people sit on the ground, and he sits on the stool.

Mishnah 2ב׳

הַמֶּלֶךְ לֹא דָן וְלֹא דָנִין אוֹתוֹ, לֹא מֵעִיד וְלֹא מְעִידִין אוֹתוֹ, לֹא חוֹלֵץ וְלֹא חוֹלְצִין לְאִשְׁתּוֹ. לֹא מְיַבֵּם וְלֹא מְיַבְּמִין לְאִשְׁתּוֹ. רַבִּי יְהוּדָה אוֹמֵר, אִם רָצָה לַחֲלֹץ אוֹ לְיַבֵּם, זָכוּר לָטוֹב. אָמְרוּ לוֹ, אֵין שׁוֹמְעִין לוֹ. וְאֵין נוֹשְׂאִין אַלְמָנָתוֹ. רַבִּי יְהוּדָה אוֹמֵר, נוֹשֵׂא הַמֶּלֶךְ אַלְמָנָתוֹ שֶׁל מֶלֶךְ, שֶׁכֵּן מָצִינוּ בְדָוִד שֶׁנָּשָׂא אַלְמָנָתוֹ שֶׁל שָׁאוּל, שֶׁנֶּאֱמַר (שמואל ב יב) וָאֶתְּנָה לְךָ אֶת בֵּית אֲדֹנֶיךָ וְאֶת נְשֵׁי אֲדֹנֶיךָ בְּחֵיקֶךָ:

The king may not judge nor be judged himself; may not testify, nor may others testify against him; may not perform chalitzah, nor may others perform chalitzah for his wife; and may not marry through levirate marriage, nor may others marry his wife through levirate marriage. Rabbi Yehudah says, if he wishes to perform chalitzah or marry through Levirate marriage, he is remembered for good [i.e. it is meritorious]. [The Sages] said to him: We do not listen to [the king in this respect]. And none may marry his widow. Rabbi Yehudah says, a king may marry the widow of [another] king, for thus we find with respect to David, who married the widow of Saul, as it says (II Samuel 12:8), "And I gave you the house of your master, and the wives of your master in your bosom."